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Example 1: Querying a student table in a database through a stored procedure We know that in SQL, we query a table, which can be queried through the select * from student, what should we write in the stored procedure? Solution: Fi
to automatically generate the following code segment: [Function(Name="dbo.[Customers By City]")]public ISingleResult We use the following code to call: ISingleResult Statement Description: This instance uses the stored procedure to return the customer's CustomerID and City in London.3. Multiple Single result sets with possible shapes When a stored
SQL stored procedure I. Concepts, advantages and syntax of SQL stored proceduresBefore learning the program process, let's first understand what a stored procedure is? What adv
returned.Suppose there are the following stored processes (the purpose of this article is not to describe the T-SQL syntax, so the stored process only gives code, not to mention ): /* SP1 */Create procedure DBO. getuserlistAsSet nocount onBeginSelect * From DBO. [userinfo]EndGo The preceding
Definition of stored procedures, Stored Procedure (Stored Procedure) is a set of SQL statements for specific functions. The set is compiled and Stored in the database. You can specify t
need to output in the result, the item must be an output, and if it is only used for outputting parameters, you can use the cursor , and when you use this parameter, you must specify both the varying and the output statements. Example: 12345678 CREATEPROCEDUREorder_tot_amt@o_idint,@p_totintoutputASSELECT@p_tot=sum(Unitprice*Quantity)FROMorderdetails[emailprotected]_idGO Example
The collector can easily invoke the stored procedure of the database, here is an example to see the specific program. Call a stored procedure with no return value using Oracle 's stored procedures as an
): Add a record to the bankMoney table and query the total amount of all deposits in the table userID = Zhangsan. Create proc insert_bank @ param1 char (10), @ param2 varchar (20), @ param3 varchar (20), @ param4 int, @ param5 int outputWith encryption --------- encryptionAsInsert bankMoney (id, userID, sex, Money)Values (@ param1, @ param2, @ param3, @ param4)Select @ param5 = sum (Money) from bankMoney where userID = 'hangsan'GoYou can run this stored
procedure sp_demo_out_parameter (OUT p_out INT)BEGINSELECT p_out;/* view output parameters */SET p_out = 2;/* modify the parameter value */SELECT p_out;/* check for any changes */END; Execution result:Mysql> SET @ p_out = 1Mysql> CALL sp_demo_out_parameter (@ p_out)Omitted Mysql> SELECT @ p_out;Omitted Example of INOUT parameter:Mysql> create procedure sp_demo_i
Recently, due to work needs, from an applicationProgramExport a CSV data table and then import it to the ms SQL data table of another application environment, because it involves the import of multiple CSV export filesTherefore, a stored procedure is written to give it some flexibility. You can specify the path where the CSV file is
Let's take a look at the knowledge about stored procedures.1. Create a stored procedureCreate procedure stored procedure nameParameter listAsBegin......EndII. Call the stored procedureCall
_ Open_Text_170611 '). style. display = 'none ';GetElementById ('Code _ Closed_Image_170611 '). style. display = 'inline ';GetElementById ('Code _ Closed_Text_170611 '). style. display = 'inline'; "src =" http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif "alt =" "width =" 11 "height =" 16 "align =" top "> Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->CREATE{PROC|PROCEDURE
What is a stored procedure? Store common or complex tasks in advance with SQL statements and a specified name, when you call the database tutorial to provide services with the same functions as the predefined stored procedure, you only need to call execute to automatically c
analyzer to check the SQL statement query plan and evaluate and analyze whether the SQL statement is optimized. Generally, 20% Code It occupies 80% of the resources, and our optimization focuses on these slow points.24. If the in or query is not indexed, use the display statement to specify the index: Select * From personmember (Index = ix_title) Where processid in ('male ', female ')25. Pre-calculate the
procedure (1 ).Format Format of MySQL stored PROCEDURE creation: create procedure process name ([process parameter [,...])[Features...] process body Here is an example: Note: (1) Here we need to note that DELIMITER // and DELIMITER; the DELIMITER means DELIMITER, because
course, in the MySQL stored procedure, there must be a name in the loop structure, and everything else is the same.Example 3: Use multiple cursors in the mysql stored procedure Create a table and insert some test data:Drop table if exists netingcn_proc_test;Create table 'netingcn _ proc_test '('Id' INTEGER (11) not nu
What is a stored procedure?Store common or complex tasks in advance with SQL statements and a specified name, when you call the database tutorial to provide services with the same functions as the predefined stored procedure, you only need to call execute to automatically co
Tags: Network A large number of T-SQL Analysis database requires mechanisms exist to saveOne, stored proceduresA stored procedure is a set of T-SQL statements that are compiled in a single execution planStored procedures: Like functions are saved in the database (programmabi
;DECLARE tpass varchar (50) default null;-- Declare the SQL statement corresponding to the cursorDECLARE cur CURSORSelect name, password from netingcn_proc_test;-- The done is set to 1 at the end of the cursor loop.Declare continue handler for not found set done = 1;-- Execute QueryOpen cur;-- Traverses each row of the cursorREPEAT-- Store the information of a row in the corresponding variableFETCH cur INTO tname, tpass;If not done then-- The tname an
data table, we need to create a stored procedure before using it. Its concise syntax is: Example: The create proc statement (the complete statement is create procedure) tells SQL SERVER that a stored
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