@FONM))%7, @FONM) firstTueInNextMonth, DateAdd(day, (@Wed -DatePart(weekday, @FONM))...
SET TRANSACTION --定义当前事务数据访问特征 --程序化SQL DECLARE --为查询设定游标 EXPLAN --为查询描述数据访问计划 OPEN --检索查询结果打开一个游标 FETCH --检索一行查询结果 CLOSE --关闭游标 PREPARE --为动态执行准备SQL 语句 EXECUTE --动态地执行SQL 语句 DESCRIBE --描述准备好的查询 ---局部变量 d...
USE TSQL2012;SELECT orderid, orderdate, custid, empid FROM Sales.Orders WHERE orderdate >= '20070601' AND orderdate < '20070701';-- 2 -- Return orders placed on the last day of the month -- Tables involved: Sales.Orders table-
The Beta 1 release of the next version of SQL Server™ code-named "Yukon" introduces an array of T-SQL enhancements and new features that can improve your expressive powers, error management, and performance. In this article I will discuss some of the important enhancements and new features...
IF DAY(CURRENT_TIMESTAMP) = 1BEGIN PRINT 'Today is the first day of the month.'; PRINT 'Starting a full database backup.'; BACKUP DATABASE TSQLFundamentals2008 TO DISK = 'C:\Temp\TSQLFundamentals2008_Full.BAK' WITH INIT; PRINT 'Finished full database backup.'; ...
Parallel Data Warehouse 的 T-SQL 语言元素 项目 2024/01/16 10 个参与者 反馈 本文内容 核心元素 批、流控制和变量 运算符 要匹配的通配符 显示另外 6 个 适用于 Analytic Platform System (APS) SQL Server Parallel Data Warehouse (PDW) 的 T-SQL 语言元素。
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SQL -- SET DATEFIRST to U.S. English default value of 7.SETDATEFIRST7;SELECTCAST('1999-1-1'ASdatetime2)ASSelectDate ,DATEPART(dw,'1999-1-1')ASDayOfWeek;-- January 1, 1999 is a Friday. Because the U.S. English default-- specifies Sunday as the first day of the week, DATEPART ...
weekofyear(date_id) asweekfromt15 ) ta ) tb orderbydate_id; 十六、时间序列--构造日期问题一:直接使用SQL实现一张日期维度表,包含以下字段: date string 日期 d_week string 年内第几周 weeks int 周几 w_start string 周开始日 w_end string 周结束日 ...