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Example
statement_name
Name of the prepared SQL statement.
structure_name
Name of an SQL descriptor area (SQLDA).
ESQL elements and statements
Notes • A statement must be processed with a PREPARE statement before it can be processed with
an EXECUTE statement.
Syntax
/*
** Process the non-SELECT input statement
** PREPARE the statement
** EXECUTE the prepared statement
** COMMIT WORK
*/
EXEC SQL PREPARE dynstmt FROM :sql_stmt_v ;
EXEC SQL EXECUTE dynstmt ;
EXEC SQL COMMIT WORK ;
• A prepared statement can be executed multiple times in the same transaction. Typically
each call to the EXECUTE statement supplies a different set of host variables.
• If there is no DESCRIPTOR in the USING clause, the EXECUTE statement is restricted to the
number of variables specified in the host variable list. The number and type of the
variables must be known at compile time. The host variables must be declared in the
DECLARE SECTION before they can be used in the USING clause of the EXECUTE statement.
• If there is a DESCRIPTOR in the USING clause, the program can allocate space for the input
host variables at run time.
Related statements
EXECUTE IMMEDIATE, PREPARE
EXECUTE IMMEDIATE
Executes the statement specified in a statement_string or host_variable.
EXECUTE IMMEDIATE { statement_string | host_variable } ;
statement_name
Name of the prepared SQL statement.
structure_name
Name of an SQL descriptor area (SQLDA).
Notes • The character string form of the statement is referred to as a statement string. An EXECUTE
IMMEDIATE statement accepts either a statement string or a host variable as input.
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