mysql>DELIMITER//mysql>CREATEPROCEDUREproc1--name存储过程名->(INparameter1INTEGER)->BEGIN->DECLAREvariable1CHAR(10);->IFparameter1=17THEN->SETvariable1='birds';->ELSE->SETvariable1='beasts';->ENDIF;->INSERTINTOtable1VALUES(variable1);->END->//mysql>DELIMITER ; 三.MySQL存储过程的调用 用ca...
ON { table | view } [ WITH ENCRYPTION ] {{ { FOR | AFTER | INSTEAD OF } {[INSERT][ ,][UPDATE ] [,] [ DELETE] } AS sql_statament [ ,…n ] 举例: 【例9.8】为student表创建一个触发器,用来禁止更新学号字段的值。 CREATE TRIGGER tri_stu ON student AFTER UPDATE AS IF UPDATE(stude...
(table ="cleanData", connectionString = conStr) # A transformation function transformFunc <- function(data) { data$CRSDepHour <- as.integer(trunc(data$CRSDepTime)) return(data) } # The transformation variables transformVars <- c("CRSDepTime") rxDataStep(inData = dsSqls, outFile = ds...
--1、 不带参数的存储过程:创建一个存储过程,查看所有读者的姓名、可借本数、可借天数和已借书本数。 create procedure usp_selelctReader as select rdName,canLendQty,canLendDay,rdBorrowQty from Reader, ReaderType where Reader.rdType=ReaderType.rdType --测试执行 exec usp_selelctReader 1. 2. 3. ...
CREATE PROCEDURE [dbo].[usp_getColumnsByonecolumn]( @tabname VARCHAR(100)) AS DECLARE @tab Table (colid varchar(100),colname varchar(20)) BEGIN INSERT INTO @tab exec usp_getColumnsBycolumn @tabname SELECT colid FROM @tab END --调用 ...
SQL Server converts the name of the stored procedure to an ID, and subsequent plan reuse happens based on the value of that ID. Yes, you are right plan reuse is done for Adhoc Queries also. But few catches - ad-hoc queries can reuse the plan only if the texts for two ad-hoc ...
Another use for automatic execution is to have the procedure perform system or maintenance tasks intempdb, such as creating a global temporary table. Automatic execution ensures that such a temporary table always exists whentempdbis recreated during SQL Server startup. ...
conn.Open(); SqlCommand cmd = new SqlCommand("urunGiris", conn); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("TableName", SqlDbType.VarChar, 100).Value = str; cmd.Parameters.Add("MalzemeStokNo", SqlDbType.VarChar, 50).Value = stokNo.Text; cmd.Parameters.Add("Mal...
When an application calls a procedure over the network, only the call to execute the procedure is visible. Therefore, malicious users can't see table and database object names, embed Transact-SQL statements of their own, or search for critical data. ...
EXEC SelectAllCustomers; Stored Procedure With One ParameterThe following SQL statement creates a stored procedure that selects Customers from a particular City from the "Customers" table:Example CREATE PROCEDURE SelectAllCustomers @City nvarchar(30)ASSELECT * FROM Customers WHERE City = @CityGO; Exe...