--WHEN 'Strawberry' THEN CASE ... END END AS [Sale] FROM @Sales GROUP BY ID, ProductName ) AS s INNER JOIN @Employee e ON e.ID = s.ID SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also fr...
已解决: nested exception is java.sql.SQLDataException: ORA-01476: divisor is equal to zero 问题 oracle 除零异常,且sql重复语句过多 思路 使用decode 或者 NULLIF 解决除零异常问题 原SQL case when冗余 可以用 case when in 简化 解决 在这个修改后的SQL语句中,NULLIF函数用于处理zzje、zxjje和jxjje计算...
In SQL Server SQL Server Analysis Services, data must be fed to a data mining algorithm as a series of cases that are contained within a case table. However, not all cases can be described by a single row of data. For example, a case might be derived from two tables: one table that...
FULL JOIN (something MySQL doesn't offer, as lexer correctly quoted) and Cross Join in comparison, done in T-SQL (MSSQL Server): Code: Declare @Customers as Table (CustomerID int, CustomerName varchar(50)); Declare @Orders as Table (OrderID int, CustomerID int); Insert Into @Customer...
SQL Server Subquery with nested if else conditionSQL uses "case expressions" instead of if/else ...
SQL Server supports three physical join operators: nested loops join, merge join, and hash join. In this post, I’ll describe nested loops join (or NL join for short). The basic algorithm In its simplest form, a nested loops join compares each row from one table (known as the outer ta...
SQL Server Subquery with nested if else conditionSQL uses "case expressions" instead of if/else ...
I am helping another SQL Server DBA with an issue they have with just a particular SQL Server 2008 R2 instance. I have run this query successfully on my own 2008 R2 instances, 2012 instances, etc. I'll list the query below. The sub-selects are pulling a single specific value ...
nested xlookup Hello My input data is my desired output is how to achieve this result, basically, i need to get the values for whatever date i enter in the column header. it needs to pull t... The headers of a table are always text, even if they look like dates. That's why you...
前提:客户将服务器权限交给了陌生人,导致数据库被删。 1、进入服务器内找到了昨天的mysql-bin文件,可以看见下面一个已经被删掉后的mysql-bin文件,已经空了 2、执行命令导出文件查看用以恢复 /www/server/mysql/bin/mysqlbinlog /www/server/data/mysql-bin.000005 > /root/1.sql 3、查看这个文... ...