PREPARE

PREPARE

Class

SQL Applications

Purpose

Set up an SQL statement for subsequent execution

Syntax

PREPARE <statement> FROM :<variable>

See Also

EXECUTE, EXECUTE IMMEDIATE

Description

The PREPARE command is used to set up an SQL statement for subsequent execution. The EXECUTE command is used to execute the statement. Variables used as parameters in the SQL statement must be declared before execution.

Keywords	Description
statement	An identifier for the SQL statement.
variable	The name of a variable containing the SQL statement as a string

Example

stmtbuf = 'SELECT * FROM customers WHERE contactnam = ?'
exec sql
prepare mystmt from :stmtbuf;
 
gcAuthor = 'Ann Devon'
exec sql
execute mystmt using :gcAuthor;
 
gcAuthor = 'Yang Wang'
exec sql
execute mystmt using :gcAuthor;
 
stmtbuf = 'INSERT INTO customers (customerid, companynam, contactnam) VALUES (?,?,?)'
exec sql
prepare mystmt from :stmtbuf;
 
buf1 = '00101'
buf2 = 'Recital'
buf3 = 'US'
exec sql
execute mystmt using :buf1, :buf2, :buf3;

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer