SQL DELETE

DELETE

Class

SQL Applications

Purpose

Deletes one or more rows from a table

Syntax

DELETE FROM [<database>!]<table>

[WHERE CURRENT OF <cursor> | [CURRENT OF] <condition>]

See Also

ADD TABLE, CREATE DATABASE, DB_DATADIR, EXECUTE IMMEDIATE, INSERT, GETENV(), OPEN DATABASE, SET AUTOCATALOG, SET TCACHE, USE

Description

The DELETE command executes an immediate physical deletion of the specified records i.e., records are permanently removed from the table, and cannot be recalled.

To perform a DELETE operation you must have the DELETE privilege or be the owner of the table.

Keywords	Description
database	The name of the database to which the table belongs. Databases in Recital are implemented as directories containing files that correspond to the tables and associated files in the database. Operating System file protection can be applied individually to the files for added security. The directory is a sub-directory of the Recital data directory. The environment variable / symbol DB_DATADIR points to the current Recital data directory and can be queried using the GETENV() function. Files from other directories can be added to the database using the ADD TABLE command or via the database catalog and SET AUTOCATALOG functionality. The '!' character must be included between the database name and the table name.
table	The name of the table from which to delete the rows.
WHERE	Specifies which rows are to be deleted.
CURRENT OF cursor	Deletes only the row most recently fetched by the cursor.
condition	Deletes only the rows that satisfy the condition.

Example

DELETE FROM staff 
WHERE ord_date < date();

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer