CALL¶

The CALL statement invokes a stored routine defined in the database. The stored routines supported by CUBRID are as follows.

CREATE PROCEDURE

CREATE FUNCTION

Method

CALL <routine_clause> ;

    <routine_clause> ::=
        routine_name ([<arg_value> [{, <arg_value> } ...]]) [<method_call_target>] [<to_variable>]

    <arg_value>
        literal |
        :host_variable |
        any CSQL expression

    <method_call_target> ::=
        ON [CLASS] object-valued-expression

    <to_variable> ::=
        INTO :host_variable |
        TO :host_variable

routine_name: Specifies the method name or stored function/procedure name. It is not case-sensitive.
<arg_value>: Specifies the arguments of the stored routine. The argument can be a literal value, host variable, and any expression.
<method_call_target>: Specifies only when using a method written in C. Specifies an object-valued-expression containing a class name, a variable, or another method call (which returns an object). To call a class method for a class object, you must place the CLASS keyword before the <call_target>. In this case, the table name must be the name of the class where the table method is defined. To call a record method, you must specify the expression representing the record object.
<to_variable>: The value returned by the stored routine can be stored in a host variable.

For routine_name of the CALL statement, CUBRID searches a stored routine as follows.

1 It is processed as a method if there is a target class in the CALL statement. 2 If there is no target class in the CALL statement, it is checked whether a Java stored function/procedure is executed or not; a Java stored function/procedure will be executed if one exists. 3 If no Java stored function/procedure exists in step 2 above, it is checked whether a method is executed or not; a method will be executed if one with the same name exists.

CALL Hello() INTO :HELLO;
CALL Sp_int(3) INTO :i;
CALL phone_info('Tom','016-111-1111');

The following error occurs if you call a Java stored function/procedure that does not exist.

If there is no argument in the CALL statement, a message “ERROR: Stored procedure/function ‘deposit’ does not exist.” appears because it can be distinguished from a method.
if there is an argument in the CALL statement, a message “ERROR: Methods require an object as their target.” appears because it cannot be distinguished from a method.

// there is not argument in the CALL statement
CALL deposit();

ERROR: Stored procedure/function 'deposit' does not exist.

// there are arguments in the CALL statement
CALL deposit('Tom', 3000000);

ERROR: Methods require an object as their target.

If the CALL statement is nested within another CALL statement calling a Java stored function/procedure, or if a subquery is used in calling the Java function/procedure, the CALL statement is not executed.

CALL phone_info('Tom', CALL sp_int(999));
CALL phone_info((SELECT * FROM Phone WHERE id='Tom'));