
ij Commands and Errors Reference,
Page 14 of 37
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Execute
Syntax
EXECUTE { String | Identifier } [ USING { String | Identifier } ]
Description
Has several uses:
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To execute an SQL command that has the same name as an ij command, using the Execute String style. The String is passed to the connection without further examination or processing by ij. Normally, you execute SQL commands directly, not with the Execute command.
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To execute a named command previously prepared with the ij Prepare command, using the Execute Identifier style.
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To execute either flavor of command when that command contains dynamic parameters, taking values from the Using portion of the command. In this style, the Using portions String or previously prepared Identifier is executed, and it must have a result set as its result. Each row of the result set is applied to the input parameters of the command to be executed, so the number of columns in the Usings result set must match the number of input parameters in the Executes statement. The results of each execution of the Execute statement are displayed as they are made. If the Usings result set contains no rows, the Executes statement is not executed.
When auto-commit mode is on, the Usings result set is closed upon the first execution of the Execute statement. To ensure multiple-row execution of the Execute command, use the Autocommit command to turn auto-commit off.
Example
ij> autocommit off;
ij> prepare menuInsert as 'INSERT INTO menu VALUES (?, ?, ?)';
ij> execute menuInsert using 'VALUES
(''entree'', ''lamb chop'', 14),
(''dessert'', ''creme brulee'', 6)';
1 row inserted/updated/deleted
1 row inserted/updated/deleted
ij> commit;
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