db2 stored procedure example

http://my.oschina.net/zerotime/blog/113126MySQL command line when you create a stored procedure, you first enter a delimiterDELIMITER//CREATE PROCEDURE proc ()Begin......End//OK, you can create the completed.Show stored procedure commandsShow create

Example: Why do I not need code to control the stored procedure? But do I have to use code to write the stored procedure ?? Example. Why not use code to control stored procedures? But

You can use exec or call to call a written stored procedure in Oracle data, but you can only use call to call the stored procedure in db2. Pay attention to parameter issues and parameter issues. Exec proc_pay_idv ('20140901 ',?); The execution reports an error. exec

flag can be omitted when there is only one SQL statement in the Stored Procedure body. 3. Before creating a stored procedure, introduce a very practical command, namely the delimiter command. In MySQL, the server processes statements with a semicolon ending sign. However, when creating a

the stored procedure to the caller.@ Procedure_name_varIs a variable name used to represent the name of the stored procedureThe meanings of other parameter data and reserved words are the same as those described in create procedure. For example, we have a

"inout" are not explicitly specified for MySQL stored procedure parameters, the default value is "in ". Traditionally, we will not explicitly specify the "in" parameter. 1. The "()" after the MySQL stored procedure name is required. Even if there is no parameter, "()" is required. 2. For MySQL

V_TEST = 1 LOOP BEGIN XXXX END; End loop; 5. Variable assignment V_TEST: = 123; 6. Use cursor with for in ... IS CURSOR cur is select * FROM xxx; BEGIN FOR cur_result in cur LOOP BEGIN V_SUM: = cur_result. Column name 1 + cur_result. Column name 2 END; End loop; END; 7. cursor with Parameters CURSOR C_USER (C_ID NUMBER) is select name from user where typeid = C_ID; OPEN C_USER (variable value ); LOOP FETCH C_USER INTO V_NAME; Exit fetch C_USER % NOTFOUND; Do something End loop; CLOSE C_USER; 8.

that the code of the program becomes smaller and easier to understand. Another advantage of stored procedures is that SQL can be pre-compiled, which increases the speed of the program. Because stored procedures contain program logic, more processing can be performed on the database server. Similarly, when an n-tier program is executed, the stored

complex code. In fact Set mypara = mycomm. createparameter ("return", 2, 4)Mycomm. Parameters. append mypara Can be simplified Mycomm. Parameters. append mycomm. createparameter ("return", 2, 4) It can even be simplified and will be explained later. For stored procedures with parameters, you can only use the command object to call (it can also be called through the connection object or recordset object, but I have not tried it ). 4.

object, we will call its update () method. The Update () method automatically performs operations based on the changes in each record in the able object in the DataSet object. The sqldataadapter object also contains attributes such as updatecommand, insertcommand, and deletecommand. These attributes are actually sqlcommand objects. The Update () method selects the corresponding Attribute Based on the operation type. When using stored procedures with

This article mainly introduces the correct use of dynamic cursors in DB2 stored procedures. I believe that if you have mastered the correct use of dynamic cursors in DB2 stored procedures, it will be of great help in future studies or work. The following is a detailed description of the main content of the article.