DESCRIBE
DESCRIBE — obtain information about a prepared statement or result set
Synopsis
DESCRIBE [ OUTPUT ]prepared_nameUSING [ SQL ] DESCRIPTORdescriptor_nameDESCRIBE [ OUTPUT ]prepared_nameINTO [ SQL ] DESCRIPTORdescriptor_nameDESCRIBE [ OUTPUT ]prepared_nameINTOsqlda_name
Description
DESCRIBE retrieves metadata information about the result columns contained in a prepared statement, without actually fetching a row.
Parameters
prepared_nameThe name of a prepared statement. This can be an SQL identifier or a host variable.
descriptor_nameA descriptor name. It is case sensitive. It can be an SQL identifier or a host variable.
sqlda_nameThe name of an SQLDA variable.
Examples
EXEC SQL ALLOCATE DESCRIPTOR mydesc; EXEC SQL PREPARE stmt1 FROM :sql_stmt; EXEC SQL DESCRIBE stmt1 INTO SQL DESCRIPTOR mydesc; EXEC SQL GET DESCRIPTOR mydesc VALUE 1 :charvar = NAME; EXEC SQL DEALLOCATE DESCRIPTOR mydesc;
Compatibility
DESCRIBE is specified in the SQL standard.