=[http://www.firebirdsql.org/ Firebird]=

[http://www.ibphoenix.com/main.nfs?a=ibphoenix&s=1155387578:153600&page=ibp_60_sqlref Referenz-Dokumentation]

==Meta-Daten abfragen==

===Liste der Prozeduren===
*SELECT * FROM RDB$PROCEDURES;

===Liste der Spalten in einer Tabelle===
*SELECT RDB$FIELD_NAME FROM RDB$RELATION_FIELDS WHERE RDB$RELATION_NAME='<table_name>';

===Liste der Tabellen===
*SELECT RDB$RELATION_NAME FROM RDB$RELATIONS;

===Liste der User===
*SELECT DISTINCT RDB$USER FROM RDB$USER_PRIVILEGES;

===Liste der Userrechte===
*SELECT * FROM RDB$USER_PRIVILEGES;

=[http://www.mimer.com/ Mimer SQL]=

Referenz-Dokumentation: [http://developer.mimer.com/documentation/html_92/Mimer_SQL_Engine_DocSet/Mimer_SQL_Engine.htm Mimer SQL 9.2]

=[http://www.microsoft.com/sql/default.mspx MSSQL]=

Referenz-Dokumentation: [http://msdn.microsoft.com/library/en-us/tsqlref/ts_tsqlcon_6lyk.asp SQL Server 2000]
[http://msdn2.microsoft.com/en-us/library/ms189826.aspx SQL Server 2005]

MS SQL unterstützt auch das Information_schema Schema.

=[http://www.mysql.com/products/database/ MySQL]=

Referenz-Dokumentation:
[http://dev.mysql.com/doc/refman/4.1/en/sql-syntax.html MySQL 3.23, 4.0, 4.1]
[http://dev.mysql.com/doc/refman/5.0/en/sql-syntax.html MySQL 5.0]
[http://dev.mysql.com/doc/refman/5.1/en/sql-syntax.html MySQL 5.1]

==Funktionen==
===ASCII-Code -> String===

SELECT char(42);

===Strings verknüpfen===

SELECT concat('string1','string2'); 

==Meta-Daten abfragen==

===Liste der Datenbanken===
*SHOW DATABASES;

===Liste der Prozeduren===
*SELECT * FROM information_schema.routines; (ab MySQL 5)

===Liste der Spalten in einer Tabelle===
*SHOW COLUMNS FROM <table_name>;
*SELECT * FROM information_schema columns; (ab MySQL 5)

===Liste der Tabellen===
*SHOW TABLES;
*SELECT * FROM information_schema.tables; (ab MySQL 5)

===Liste der User===
*SELECT * FROM mysql.user;

===Liste der Userrechte===
*SHOW GRANTS;
*SELECT * FROM information_schema.user_privileges; (ab MySQL 5)

=[http://www.oracle.com/database/index.html Oracle]=

Referenz-Dokumentation:
[http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14200/toc.htm Oracle 10.2]

=[http://www.postgresql.org PostgreSQL]=

Referenz-Dokumentation: 
[http://www.postgresql.org/docs/7.4/static/sql-commands.html PostgreSQL 7.4]
[http://www.postgresql.org/docs/8.0/static/sql-commands.html PostgreSQL 8.0]
[http://www.postgresql.org/docs/8.1/static/sql-commands.html PostgreSQL 8.1]

==Administration==
===Ändern eines User-Passwortes===
ALTER USER <user-name> PASSWORD '<new-password>';

==Funktionen==

===ASCII-Code -> String===

SELECT chr(42);

===Strings verknüpfen===

SELECT 'string1' || 'string2';

==Meta-Daten abfragen==

===Liste der Datenbanken===
*SELECT * FROM pg_database;

===Liste der Prozeduren===
*SELECT * FROM pg_proc;
*SELECT * FROM information_schema.routines; (ab PostgreSQL 7.4)

===Liste der Spalten in einer Tabelle===
*SELECT * FROM information_schema.columns; (ab PostgreSQL 7.4)

===Liste der Tabellen===
*SELECT * FROM pg_tables;
*SELECT * FROM information_schema.tables; (ab PostgreSQL 7.4)

===Liste der User===
*SELECT * FROM pg_user;
*SELECT * FROM information_schema.enabled_roles; (ab PostgreSQL 7.4)

===Liste der Userrechte===
*SELECT * FROM information_schema.table_privileges; (ab PostgreSQL 7.4)

===Version der Datenbank===
*SELECT version();

=[http://www.sqlite.org/ SQLite]=

[http://www.sqlite.org/lang.html Referenz-Dokumentation]

==Funktionen==

===Strings verknüpfen===

SELECT 'string1' || 'string2';


==Meta-Daten abfragen==
*SELECT * FROM SQLite_Master;

===Liste der Datenbanken===
*PRAGMA database_list;

===Felder einer Tabelle===
*PRAGMA table_info(<table_name>);

=[http://www.sybase.com/products/informationmanagement Sybase]=

[http://infocenter.sybase.com/help/index.jsp Referenz-Dokumentation]