DB2 Everyplace supported parameter markers

A parameter marker, denoted by a question mark (?), is a place holder in an SQL statement whose value is obtained during statement execution. An application uses SQLBindParameter() to associate bind parameter markers to application variables. During the execution of the SQLExecute() and SQLExecDirect() CLI functions, the values of these variables replace each respective parameter marker. Data conversion might take place during the process. See Tabelle 86 for more information on the supported data type conversions.

DB2 Everyplace supports only untyped parameter markers, which can be used in selected locations of an SQL statement. Tabelle 19 lists the restrictions on parameter marker usage.

Tabelle 19. Restrictions on parameter marker usage

Untyped parameter marker location	Data type
Expression: Alone in a select list	Error
Expression: Both operands of an arithmetic operator	Error
Predicate: Left-hand side operand of an IN predicate	Error
Predicate: Both operands of a relational operator	Error
Function: Operand of an aggregation function	Error

Zugehörige Referenzen