大约有 3,549 项符合查询结果（耗时：0.0235秒） [XML]
Select top 10 records for each category
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If you are using SQL 2005 you can do something like this...
SELECT rs.Field1,rs.Field2
FROM (
SELECT Field1,Field2, Rank()
over (Partition BY Section
ORDER BY RankCriteria DESC ) AS Rank
FROM t...
Is there a ternary conditional operator in T-SQL?
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In SQL Server 2012, you could use the IIF function:
SELECT *
FROM table
WHERE isExternal = IIF(@type = 2, 1, 0)
Also note: in T-SQL, the assignment (and comparison) operator is just = (and not == - that's C#)
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Oracle SQL Query for listing all Schemas in a DB
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Using sqlplus
sqlplus / as sysdba
run:
SELECT *
FROM dba_users
Should you only want the usernames do the following:
SELECT username
FROM dba_users
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Inserting multiple rows in mysql
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Use mysql multiqueries
– Francisco Yepes Barrera
Nov 9 '15 at 16:10
1
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Export query result to .csv file in SQL Server 2008
How can I export a query result to a .csv file in SQL Server 2008?
14 Answers
14
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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
Mysql Server1 is running as MASTER .
Mysql Server2 is running as SLAVE .
14 Answers
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MySQL pagination without double-querying?
I was wondering if there was a way to get the number of results from a MySQL query, and at the same time limit the results.
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SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
SSMS插件开发指南SQL Server Management Studio（SSMS）插件开发基本步骤同Visual Studio Addin插件开发，仅在配置部署方面、应用程序对象（Application DTE）有所差异，以下详细介绍。创建步骤同VS-Addin，请查看《VS Addin插件基本开发入门》。
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Hidden Features of MySQL
I've been working with Microsoft SQL Server with many years now but have only just recently started to use MySQL with my web applications, and I'm hungry for knowledge.
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...tion error (where X denotes a number that is the same in both instances).
SQL Server 2012 adds SC (Supplementary Character) collations that support UTF-16. In these collations a single nvarchar character may take 2 or 4 bytes.
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