You don't seem to set an initial value for @RowNo.The sample information you provided is too little, so that we can not fully understand your needs and actual code. If the experts’ suggestions cannot solve your problem, please provide a complete minimal example. If you have any question,...
After reading this article you will understand the basics of using the WHILE statement to write a loop within a stored procedure. All the examples for this lesson are based on Microsoft SQL Server Management Studio and the sample databases AdventureWorks and WideWorldImporters. Start learning SQL t...
A. Use BREAK and CONTINUE with nested IF...ELSE and WHILE In the following example, if the average list price of a product is less than $300, theWHILEloop doubles the prices and then selects the maximum price. If the maximum price is less than or equal to $500, theWHILEloop restarts...
你可以通过RECORDSAFFECTED参数知道它.Sub ConnectionExample7()Dim cnn As ADODB.ConnectionDim rs As ADODB.RecordsetSet cnn = New ADODB.Connection'引用ODBC DRIVER建立连接cnn.ConnectionString = "driver={SQL Server};" & _"server=rgreennt;uid=sa;pwd=;database=pubs"cnn.Open'向数据源发送删...
sql Server 2017 (14.x) 及更高版本 Azure SQL 数据库Microsoft Fabric 中的 SQL 数据库Azure SQL 托管实例 SQL 数据库 此示例提供 Transact-SQL 脚本,用于创建包含节点和边缘的图形数据库,然后使用新的 MATCH 子句匹配某些模式并遍历图形。 此示例脚本适用于 Azure SQL 数据库 和 SQL Server 2017(14.x)及更...
Applies to: SQL Server Azure SQL Managed Instance Trace flags are used to set specific server characteristics or to alter a particular behavior. For example, Trace Flag 3226 is a commonly used startup trace flag that suppresses successful backup messages in the error log. Trace flags are ...
Azure SQL Database and SQL Server starting SQL Server 2017 (14.x): ALTER TABLE, ALTER PROCEDURE, and sp_rename operations are supported. Other schema changes, for example adding extended properties, are not supported.SQL Server 2016 (13.x): ALTER TABLE and ALTER PROCEDURE operations are suppo...
In the following example, BEGIN and END define a series of SQL statements that run together. If the BEGIN...END block isn't included, the following example runs in a continuous loop. SQL Copy -- Uses AdventureWorksDW DECLARE @Iteration INT = 0; WHILE @Iteration < 10 BEGIN SELECT First...
Logical reads - reading data/index pages in cache - are most frequently the drivers of CPU utilization in SQL Server. There could be scenarios where CPU use comes from other sources: a while loop (in T-SQL or other code like XProcs or SQL CRL objects). The second example in the table...
The Foreach Loop container repeats the control flow for each member of a specified enumerator. SQL Server Integration Services provides the following enumerator types: Foreach ADO enumerator to enumerate rows in tables. For example, you can get the rows in an ADO recordset. The Recordset ...