577 lines
15 KiB
Plaintext
577 lines
15 KiB
Plaintext
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: myddas.yap *
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* Last rev: *
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* mods: *
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* comments: Global predicates for the MyDDAS Interface *
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* *
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*************************************************************************/
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#if defined MYDDAS_MYSQL || defined MYDDAS_ODBC
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/* Initialize MYDDAS GLOBAL STRUCTURES */
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:- c_db_initialize_myddas.
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#ifdef DEBUG
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:- yap_flag(single_var_warnings,on).
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#endif
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:- module(myddas,[
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db_open/5,
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db_open/4,
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db_close/1,
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db_close/0,
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db_verbose/1,
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db_module/1,
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db_is_database_predicate/3,
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#ifdef MYDDAS_STATS
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db_stats/1,
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db_stats/2,
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db_stats_time/2,
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#endif
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db_sql/2,
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db_sql/3,
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db_sql_select/3,
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db_prolog_select/2,
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db_prolog_select/3,
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db_prolog_select_multi/3,
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db_command/2,
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db_assert/2,
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db_assert/1,
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db_create_table/3,
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db_export_view/4,
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db_update/2,
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db_get_attributes_types/2,
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db_get_attributes_types/3,
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db_number_of_fields/2,
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db_number_of_fields/3,
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db_multi_queries_number/2,
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% myddas_top_level.ypp
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#ifdef MYDDAS_TOP_LEVEL
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db_top_level/4,
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db_top_level/5,
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db_datalog_select/3,
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#endif
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% myddas_assert_predicates.ypp
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db_import/2,
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db_import/3,
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db_view/2,
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db_view/3,
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db_insert/2,
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db_insert/3,
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db_abolish/2,
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db_listing/0,
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db_listing/1
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#ifdef MYDDAS_MYSQL
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% myddas_mysql.ypp
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,
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db_my_result_set/1,
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db_datalog_describe/1,
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db_datalog_describe/2,
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db_describe/3,
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db_describe/2,
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db_datalog_show_tables/1,
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db_datalog_show_tables/0,
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db_show_tables/2,
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db_show_tables/1,
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db_show_database/2,
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db_show_databases/2,
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db_show_databases/1,
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db_change_database/2,
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db_call_procedure/4,
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db_call_procedure/3,
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db_my_sql_mode/1,
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db_my_sql_mode/2,
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db_sql_mode/1,
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db_sql_mode/2
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#endif
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]).
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#ifdef MYDDAS_TOP_LEVEL
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:- use_module(myddas_top_level,[
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db_top_level/4,
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db_top_level/5,
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db_datalog_select/3
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]).
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#endif
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:- use_module(myddas_assert_predicates,[
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db_import/2,
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db_import/3,
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db_view/2,
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db_view/3,
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db_insert/2,
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db_insert/3,
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db_abolish/2,
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db_listing/0,
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db_listing/1
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]).
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#ifdef MYDDAS_MYSQL
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:- use_module(myddas_mysql,[
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db_my_result_set/1,
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db_datalog_describe/1,
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db_datalog_describe/2,
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db_describe/3,
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db_describe/2,
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db_datalog_show_tables/1,
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db_datalog_show_tables/0,
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db_show_tables/2,
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db_show_tables/1,
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db_show_database/2,
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db_show_databases/2,
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db_show_databases/1,
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db_change_database/2,
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db_call_procedure/4,
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db_call_procedure/3,
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db_my_sql_mode/1,
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db_my_sql_mode/2,
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db_sql_mode/1,
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db_sql_mode/2
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]).
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#endif /* MYDDAS_MYSQL */
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:- use_module(myddas_util_predicates,[
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'$prolog2sql'/3,
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'$create_multi_query'/3,
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'$get_multi_results'/4,
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'$process_sql_goal'/4,
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'$process_fields'/3,
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'$get_values_for_insert'/3,
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'$make_atom'/2,
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'$write_or_not'/1,
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'$abolish_all'/1,
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'$make_a_list'/2,
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'$get_table_name'/2,
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'$get_values_for_update'/4,
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'$extract_args'/4,
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#ifdef MYDDAS_STATS
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'$make_stats_list'/2,
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#endif
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'$lenght'/2
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]).
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:- use_module(myddas_errors,[
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'$error_checks'/1
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]).
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:- use_module(myddas_prolog2sql,[
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translate/3,
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queries_atom/2
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]).
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:- use_module(lists,[
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append/3
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]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_open/5
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% db_open/4
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%
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db_open(Interface,HostDb,User,Password):-
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db_open(Interface,myddas,HostDb,User,Password).
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#ifdef MYDDAS_MYSQL
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db_open(mysql,Connection,Host/Db/Port/Socket,User,Password) :- !,
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'$error_checks'(db_open(mysql,Connection,Host/Db/Port/Socket,User,Password)),
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c_db_my_connect(Host,User,Password,Db,Port,Socket,Con),
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set_value(Connection,Con).
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db_open(mysql,Connection,Host/Db/Port,User,Password) :-
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integer(Port),!,
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db_open(mysql,Connection,Host/Db/Port/_,User,Password). % Var to be NULL, the default socket
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db_open(mysql,Connection,Host/Db/Socket,User,Password) :- !,
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db_open(mysql,Connection,Host/Db/0/Socket,User,Password). % 0 is default port
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db_open(mysql,Connection,Host/Db,User,Password) :-
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db_open(mysql,Connection,Host/Db/0/_,User,Password). % 0 is default port and Var to be NULL, the default socket
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#endif
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#ifdef MYDDAS_ODBC
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db_open(odbc,Connection,ODBCEntry,User,Password) :-
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'$error_checks'(db_open(odbc,Connection,ODBCEntry,User,Password)),
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c_db_odbc_connect(ODBCEntry,User,Password,Con),
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set_value(Connection,Con).
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#endif
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_close/1
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% db_close/0
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%
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db_close:-
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db_close(myddas).
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db_close(Connection):-
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'$error_checks'(db_close(Connection)),
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get_value(Connection,Con),
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'$abolish_all'(Con).
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db_close(Connection) :-
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'$error_checks'(db_close(Connection)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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c_db_my_disconnect(Con)
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;
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c_db_odbc_disconnect(Con)
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),
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set_value(Connection,[]). % "deletes" atom
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_verbose/1
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%
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%
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db_verbose(X):-
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var(X),!,
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get_value(db_verbose,X).
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db_verbose(N):-!,
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set_value(db_verbose,N).
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%default value
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:- set_value(db_verbose,0).
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:- set_value(db_verbose_filename,myddas_queries).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_module/1
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%
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%
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db_module(X):-
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var(X),!,
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get_value(db_module,X).
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db_module(ModuleName):-
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set_value(db_module,ModuleName).
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% default value
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:- db_module(user).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_is_database_predicate(+,+,+)
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%
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%
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db_is_database_predicate(Module,PredName,Arity):-
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'$error_checks'(db_is_database_predicate(PredName,Arity,Module)),
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c_db_check_if_exists_pred(PredName,Arity,Module).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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#ifdef MYDDAS_STATS
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_stats(+,-)
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%
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%
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db_stats(List):-
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db_stats(myddas,List).
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db_stats(Connection,List):-
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'$error_checks'(db_stats(Connection,List)),
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NumberOfStats = 10,
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'$make_a_list'(NumberOfStats,ListX1),
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( var(Connection) ->
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c_db_stats(0,ListX1)
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;
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get_value(Connection,Conn),
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c_db_stats(Conn,ListX1)
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),
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'$make_stats_list'(ListX1,List).
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#ifdef DEBUG
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_stats_time(+,-)
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% Reference is C pointer (memory reference)
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%
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db_stats_time(Reference,Time):-
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'$error_checks'(db_stats_time(Reference,Time)),
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c_db_stats_time(Reference,Time).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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#endif /* DEBUG */
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#endif /* MYDDAS_STATS */
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_sql(+,+,-)
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%
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%
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%compatibility
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db_sql_select(Connection,SQL,LA):-
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db_sql(Connection,SQL,LA).
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db_sql(SQL,LA):-
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db_sql(myddas,SQL,LA).
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db_sql(Connection,SQL,LA):-
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'$error_checks'(db_sql(Connection,SQL,LA)),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,ResultSet,Con,Mode,Arity)
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;
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c_db_odbc_number_of_fields_in_query(SQL,Con,Arity)
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),
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'$make_a_list'(Arity,LA),
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( ConType == mysql ->
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!,c_db_my_row(ResultSet,Arity,LA)
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;
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'$make_a_list'(Arity,BindList),
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c_db_odbc_query(SQL,ResultSet,Arity,BindList,Con),!,
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c_db_odbc_row(ResultSet,BindList,LA)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_prolog_select(+,+,+)
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%
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%
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db_prolog_select(LA,DbGoal):-
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db_prolog_select(myddas,LA,DbGoal).
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db_prolog_select(Connection,LA,DbGoal):-
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'$lenght'(LA,Arity),
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Name=viewname,
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functor(ViewName,Name,Arity),
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% build arg list for viewname/Arity
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ViewName=..[Name|LA],
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'$prolog2sql'(ViewName,DbGoal,SQL),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,ResultSet,Con,Mode,_),
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!,c_db_my_row(ResultSet,Arity,LA)
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;
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true
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_prolog_select_multi(+,+,-)
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% db_prolog_select_multi(guest,[(ramos(A,C),A=C),(ramos(D,B),B=10)],[[A],[D,B]]).
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%
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db_prolog_select_multi(Connection,DbGoalsList,ListOfResults) :-
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'$error_checks'(db_prolog_select_multi(Connection,DbGoalsList,ListOfResults)),
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'$create_multi_query'(ListOfResults,DbGoalsList,SQL),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,ResultSet,Con,Mode,_)
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;
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true
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),
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'$get_multi_results'(Con,ConType,ResultSet,ListOfResults).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_command/2
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%
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%
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db_command(Connection,SQL):-
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'$error_checks'(db_command(Connection,SQL)),
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get_value(Connection,Con),
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'$write_or_not'(SQL),
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c_db_connection_type(Con,ConType),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,_,Con,Mode,_)
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;
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true
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_assert/2
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% db_assert/1
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%
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db_assert(PredName):-
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db_assert(myddas,PredName).
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db_assert(Connection,PredName):-
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translate(PredName,PredName,Code),
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'$error_checks'(db_insert2(Connection,PredName,Code)),
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'$get_values_for_insert'(Code,ValuesList,RelName),
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'$make_atom'(['INSERT INTO `',RelName,'` VALUES '|ValuesList],SQL),
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get_value(Connection,Con),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(SQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(SQL,_,Con,Mode,_)
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;
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c_db_odbc_query(SQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_create_table/3
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% FieldsList = [field(Name,Type,Null,Key,DefaultValue)]
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% Example [field(campo1,'char(12)',y,y,a),field(campo2,int,y,y,0)]
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% TODO Test with ODBC & Type Checks
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db_create_table(Connection,TableName,FieldsInf):-
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'$error_checks'(db_create_table(Connection,TableName,FieldsInf)),
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get_value(Connection,Con),
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'$process_fields'(FieldsInf,FieldString,KeysSQL),
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'$make_atom'(['CREATE TABLE `',TableName,'` ( ',FieldString,KeysSQL,' )'],FinalSQL),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(FinalSQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(FinalSQL,_,Con,Mode,_)
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;
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c_db_odbc_query(FinalSQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_export_view/4
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% TODO Test with ODBC
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%
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db_export_view(Connection,TableViewName,SQLorDbGoal,FieldsInf):-
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'$error_checks'(db_export_view(Connection,TableViewName,SQLorDbGoal,FieldsInf)),
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get_value(Connection,Con),
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'$process_sql_goal'(TableViewName,SQLorDbGoal,TableName,SQL),
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% Case there's some information about the
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% attribute fields of the relation given
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% by the user
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( FieldsInf == [] ->
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'$make_atom'(['CREATE TABLE ',TableName,' AS ',SQL],FinalSQL)
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;
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'$process_fields'(FieldsInf,FieldString,KeysSQL),
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'$make_atom'(['CREATE TABLE ',TableName,' (',FieldString,KeysSQL,') AS ',SQL],FinalSQL)
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),
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c_db_connection_type(Con,ConType),
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'$write_or_not'(FinalSQL),
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( ConType == mysql ->
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db_my_result_set(Mode),
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c_db_my_query(FinalSQL,_,Con,Mode,_)
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;
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c_db_odbc_query(FinalSQL,_,_,_,Con)
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).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_update/2
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% BUG: db_update dosen't work for this case, just an example
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% db_update(my1,edge(1,3)-edge(99,99)).
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% The case where the set condition is "set" to change all the fields
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db_update(Connection,WherePred-SetPred):-
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%TODO: error_checks
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get_value(Connection,Conn),
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% Match and Values must be "unifiable"
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functor(WherePred,PredName,Arity),
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functor(SetPred,PredName,Arity),
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functor(NewRelation,PredName,Arity),
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'$extract_args'(WherePred,1,Arity,WhereArgs),
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'$extract_args'(SetPred,1,Arity,SetArgs),
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copy_term(WhereArgs,WhereArgsTemp),
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NewRelation=..[PredName|WhereArgsTemp],
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translate(NewRelation,NewRelation,Code),
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'$get_values_for_update'(Code,SetArgs,SetCondition,WhereCondition),
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'$get_table_name'(Code,TableName),
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append(SetCondition,WhereCondition,Conditions),
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'$make_atom'(['UPDATE `',TableName,'` '|Conditions],SQL),
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'$write_or_not'(SQL),
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db_my_result_set(Mode),
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c_db_my_query(SQL,_,Conn,Mode,_).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% db_get_attributes_types/3
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% db_get_attributes_types/2
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%
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db_get_attributes_types(RelationName,TypesList) :-
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db_get_attributes_types(myddas,RelationName,TypesList).
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db_get_attributes_types(Connection,RelationName,TypesList) :-
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'$error_checks'(db_get_attributes_types(Connection,RelationName,TypesList)),
|
|
get_value(Connection,Con),
|
|
c_db_connection_type(Con,ConType),
|
|
( ConType == mysql ->
|
|
c_db_my_number_of_fields(RelationName,Con,Arity)
|
|
;
|
|
c_db_odbc_number_of_fields(RelationName,Con,Arity)
|
|
),
|
|
Size is 2*Arity,
|
|
'$make_a_list'(Size,TypesList),
|
|
c_db_connection_type(Con,ConType),
|
|
( ConType == mysql ->
|
|
c_db_my_get_attributes_types(RelationName,Con,TypesList)
|
|
;
|
|
c_db_odbc_get_attributes_types(RelationName,Con,TypesList)
|
|
).
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
% db_number_of_fields/3
|
|
%
|
|
%
|
|
db_number_of_fields(RelationName,Arity) :-
|
|
db_number_of_fields(myddas,RelationName,Arity).
|
|
db_number_of_fields(Connection,RelationName,Arity) :-
|
|
'$error_checks'(db_number_of_fields(Connection,RelationName,Arity)),
|
|
get_value(Connection,Con),
|
|
c_db_connection_type(Con,ConType),
|
|
( ConType == mysql ->
|
|
c_db_my_number_of_fields(RelationName,Con,Arity)
|
|
;
|
|
c_db_odbc_number_of_fields(RelationName,Con,Arity)
|
|
).
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
% db_multi_queries_number(+,+)
|
|
% TODO: EVERITHING
|
|
%
|
|
db_multi_queries_number(Connection,Number) :-
|
|
'$error_checks'(db_multi_queries_number(Connection,Number)),
|
|
get_value(Connection,Con),
|
|
c_db_multi_queries_number(Con,Number).
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
|
|
|
#endif /*MYDDAS_MYSQL || MYDDAS_ODBC*/
|