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Vitor Santos Costa
2018-05-20 18:40:56 +01:00
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packages/myddas/myddas.md
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## The MYDDAS Data-base interface {#myddas}
@defgroup myddas The MYDDAS Data-base interface
@ingroup packages
The MYDDAS database project was developed within a FCT project aiming at
the development of a highly efficient deductive database system, based
on the coupling of the MySQL relational database system with the YAP
Prolog system. MYDDAS was later expanded to support the ODBC interface.
The MYDDAS database project was developed within a FCT project
aiming at the development of a highly efficient deductive database
system, based on the coupling of the MySQL relational database
system with the YAP Prolog system. MYDDAS was later expanded to
support the ODBC interface, postgres and sqlite3.
### Requirements and Installation Guide {#Requirements_and_Installation_Guide}
@defgroup Requirements_and_Installation_Guide Requirements and Installation Guide
@ingroup myddas @{
Next, we describe how to usen of the YAP with the MYDDAS System. The
use of this system is entirely depend of the MySQL development libraries
@@ -38,7 +41,9 @@
two different ways. As if we were on the MySQL Client Shell, and as if
we were using Datalog.
### MYDDAS Architecture {#MYDDAS_Architecture}
@}
@defgroup MYDDAS_Architecture MYDDAS Architecture
@ingroup myddas @{
The system includes four main blocks that are put together through the
MYDDAS interface: the Yap Prolog compiler, the MySQL database system, an
@@ -88,8 +93,9 @@
WHERE A.Name = 'John Doe';
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### View Level Interface {#View_Level_Interface}
@}
@defgroup View_Level_Interface View Level Interface
@ingroup myddas @{
@pred db view(+,+,+).
@pred db view(+,+).
@@ -179,7 +185,7 @@
To know how to use db `view/3`, please refer to Draxler's Prolog to
SQL Compiler Manual.
### Accessing Tables in Data Sources Using SQL {#Accessing_Tables_in_Data_Sources_Using_SQL}
@defgroup Accessing_Tables_in_Data_Sources_Using_SQL Accessing Tables in Data Sources Using SQL
@pred db_sql(+,+,?).
@@ -203,9 +209,9 @@
?- db_sql('SELECT * FROM phonebook',LA).
LA = ['D','John Doe',123456789] ?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Insertion of Rows {#Insertion_of_Rows}
@}
@defgroup Insertion_of_Rows Insertion of Rows
@ingroup myddas @{
@pred db_assert(+,+).
@pred db_assert(+).
@@ -274,7 +280,7 @@
yes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Types of Attributes {#Types_of_Attributes}
@defgroup Types_of_Attributes Types of Attributes
@pred db_get_attributes_types(+,+,?).
@@ -298,7 +304,7 @@ otype for this predicate is the following:
where <tt>Hello World</tt> is the name of the relation and <tt>myddas</tt> is the
connection identifier.
### Number of Fields {#Number_of_Fields}
@defgroup Number_of_Fields Number of Fields
@pred db_number_of_fields(+,?).
@@ -325,7 +331,7 @@ otype for this predicate is the following:
where `Hello World` is the name of the
relation and `myddas` is the connection identifier.
### Describing a Relation {#Describing_a_Relation}
@defgroup Describing_a_Relation Describing a Relation
@pred db_datalog_describe(+,+).
@pred db_datalog_describe(+).
@@ -366,10 +372,10 @@ otype for this predicate is the following:
Term = tableInfo('Letter',char(1),'YES','',null(2),'') ? ;
no
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Enumeration Relations Describing_a_Relation Describing a Relation {#Enumerating_Relations}
@defgroup Enumerating_Relations Enumeration Relations Describing_a_Relation Describing a Relation
/@pred db_datalog_show_tables(+).
@pred db_datalog_show_tables(+).
@pred db_datalog_show_tables
@@ -406,7 +412,8 @@ otype for this predicate is the following:
no
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### The MYDDAS MySQL Top Level {#The_MYDDAS_MySQL_Top_Level}
@}
@defgroup The_MYDDAS_MySQL_Top_Level The MYDDAS MySQL Top Level @ingroup myddas @{
@pred db_top_level(+,+,+,+,+).
@pred db_top_level(+,+,+,+).
@@ -456,9 +463,9 @@ otype for this predicate is the following:
yes
?-
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
### Other MYDDAS Properties {#Other_MYDDAS_Properties}
@}
@defgroup Other_MYDDAS_Properties Other MYDDAS Properties
@ingroup myddas @{
@pred db_verbose(+).
@@ -553,4 +560,7 @@ otype for this predicate is the following:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You can see the available SQL Modes at the MySQL homepage at
<http://www.mysql.org>.
@]
@}