:meta-keywords: procedure definition, create procedure, drop procedure, function definition, create function, drop function :meta-description: Define functions/procedures in CUBRID database using create procedure, create function, drop procedure and drop function statements. ************************************************ STORED FUNCTION/PROCEDURE DEFINITION STATEMENTS ************************************************ .. _create-procedure: CREATE PROCEDURE ================= Create stored procedure using the **CREATE PROCEDURE** statement. :: CREATE [OR REPLACE] PROCEDURE [schema_name.]procedure_name ([ [, ] ...]) [] {IS | AS} LANGUAGE

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COMMENT 'procedure_comment'; ::= parameter_name [mode] sql_type [ { DEFAULT | = } ] [COMMENT 'parameter_comment_string'] ::= [PLCSQL | JAVA] ::= IN | OUT | IN OUT | INOUT ::= = AUTHID {DEFINER | OWNER | CALLER | CURRENT_USER} You can use the **OR REPLACE** clause to replace or create a new stored function/procedure. * *schema_name*: Specifies the schema name. If omitted, the schema name of the current session is used. * *procedure_name*: Specifies the name of the stored procedure to be created (maximum 222 bytes). * *parameter_name*: Specifies the name of the parameter (maximum 254 bytes). * *sql_type*: Specifies the data type of the parameter. For available data types, refer to :ref:`pl-arg-type-restriction`. * *default_arg*: Specifies the default value of the parameter. Refer to :ref:`pl-arg-default`. * *authid*: Specifies the execution authority of the stored procedure. For more details, refer to :ref:`pl-authid`. * *parameter_comment_string*: Specifies the comment string for the parameter. * *body*: Specifies the body of the stored procedure. * *procedure_comment*: Specifies the comment string for the stored procedure. COMMENT of Stored Procedure ----------------------------------- A comment of stored function/procedure can be written at the end of the statement as follows. .. code-block:: sql CREATE FUNCTION Hello() RETURN VARCHAR AS LANGUAGE JAVA NAME 'SpCubrid.HelloCubrid() return java.lang.String' COMMENT 'function comment'; A comment of a paramenter can be written as follows. .. code-block:: sql CREATE OR REPLACE FUNCTION test(i in int COMMENT 'arg i') RETURN int AS LANGUAGE JAVA NAME 'SpTest.testInt(int) return int' COMMENT 'function test'; A comment of a stored function/procedure can be shown by running the following syntax. .. code-block:: sql SELECT sp_name, comment FROM db_stored_procedure; A comment for a parameter of a function can be shown by running the following syntax. .. code-block:: sql SELECT sp_name, arg_name, comment FROM db_stored_procedure_args; Checking the Published Java Stored Procedure Information ------------------------------------------------------------------- You can check the information on the published Java stored procedure. The **db_stored_procedure** system virtual table provides the information on stored names and types, return types, number of parameters, Java class specifications, and the owner. The **db_stored_procedure_args** system virtual table provides the information on parameters used in the stored function/procedure. .. code-block:: sql SELECT * FROM db_stored_procedure WHERE sp_type = 'PROCEDURE'; :: sp_name sp_type return_type arg_count lang target owner ================================================================================ 'athlete_add' 'PROCEDURE' 'void' 4 'JAVA''Athlete.Athlete(java.lang.String, java.lang.String, java.lang.String, java.lang.String)' 'DBA' .. code-block:: sql SELECT * FROM db_stored_procedure_args WHERE sp_name = 'athlete_add'; :: sp_name index_of arg_name data_type mode ================================================= 'athlete_add' 0 'name' 'STRING' 'IN' 'athlete_add' 1 'gender' 'STRING' 'IN' 'athlete_add' 2 'nation_code' 'STRING' 'IN' 'athlete_add' 3 'event' 'STRING' 'IN' .. _create-function: CREATE FUNCTION ================= Create stored function using the **CREATE FUNCTION** statement. :: CREATE [OR REPLACE] FUNCTION [schema_name.]function_name ([ [, ] ...]) RETURN sql_type [] {IS | AS} LANGUAGE

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COMMENT 'function_comment'; ::= parameter_name [mode] sql_type [] [COMMENT 'param_comment_string'] ::= { DEFAULT | = } ::= | = AUTHID {DEFINER | OWNER | CALLER | CURRENT_USER} = [NOT DETERMINISTIC | DETERMINISTIC] ::= [PLCSQL | JAVA] ::= IN | OUT | IN OUT | INOUT * *schema_name*: Specifies the schema name (up to 31 bytes). If omitted, the schema name of the current session is used. * *function_name*: Specifies the name of the stored function to be created (up to 222 bytes). * *parameter_name*: Specifies the name of the parameter (up to 254 bytes). * *sql_type*: Specifies the data type of the parameter or return value. For available data types, refer to :ref:`pl-arg-type-restriction`. * *default_arg*: Specifies the default value of the parameter. Refer to :ref:`pl-arg-default`. * *param_comment_string*: Specifies the comment string for the parameter. * *authid*: Specifies the execution authority of the stored function. For more details, refer to :ref:`pl-authid`. * *deterministic*: Specifies whether the stored function is deterministic. For more details, refer to :ref:`pl-deterministic`. * *body*: Specifies the body of the stored function. * *function_comment*: Specifies the comment string for the stored function. COMMENT of Stored Function ---------------------------------- A comment of stored function/procedure can be written at the end of the statement as follows. .. code-block:: sql CREATE FUNCTION Hello() RETURN VARCHAR AS LANGUAGE JAVA NAME 'SpCubrid.HelloCubrid() return java.lang.String' COMMENT 'function comment'; A comment of a paramenter can be written as follows. .. code-block:: sql CREATE OR REPLACE FUNCTION test(i in int COMMENT 'arg i') RETURN int AS LANGUAGE JAVA NAME 'SpTest.testInt(int) return int' COMMENT 'function test'; A comment of a stored function/procedure can be shown by running the following syntax. .. code-block:: sql SELECT sp_name, comment FROM db_stored_procedure; A comment for a parameter of a function can be shown by running the following syntax. .. code-block:: sql SELECT sp_name, arg_name, comment FROM db_stored_procedure_args; Checking the Published Java Stored Function Information --------------------------------------------------------- You can check the information on the published Java stored function. The **db_stored_procedure** system virtual table provides the information on stored names and types, return types, number of parameters, Java class specifications, and the owner. The **db_stored_procedure_args** system virtual table provides the information on parameters used in the stored function/procedure. .. code-block:: sql SELECT * FROM db_stored_procedure WHERE sp_type = 'FUNCTION'; :: sp_name sp_type return_type arg_count lang target owner ================================================================================ 'hello' 'FUNCTION' 'STRING' 0 'JAVA''SpCubrid.HelloCubrid() return java.lang.String' 'DBA' 'sp_int' 'FUNCTION' 'INTEGER' 1 'JAVA''SpCubrid.SpInt(int) return int' 'DBA' .. code-block:: sql SELECT * FROM db_stored_procedure_args WHERE sp_name = 'sp_int'; :: sp_name index_of arg_name data_type mode ================================================= 'sp_int' 0 'i' 'INTEGER' 'IN' DROP PROCEDURE ============== In CUBRID, A stored proceudre can be deleted using the **DROP PROCEDURE** statement. Also, you can delete multiple stored procedures at the same time with several *procedure_name*\s separated by a comma (,). :: DROP PROCEDURE procedure_name [{ , procedure_name , ... }]; * *procedure_name*: Specifies the name of procedure to delete .. code-block:: sql DROP PROCEDURE hello, sp_int; A stored procedure can be deleted only by the user who published it or by DBA members. For example, if a **PUBLIC** user published the 'sp_int' stored procedure, only the **PUBLIC** or **DBA** members can delete it. DROP FUNCTION ============== In CUBRID, A stored function can be deleted using the **DROP FUNCTION** statement. 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