大约有 3,610 项符合查询结果(耗时:0.0366秒) [XML]

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Difference between database and schema

What's the difference between a Database and a Schema in SQL Server? Both are the containers of tables and data. 5 Answers ...
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How to check for Is not Null And Is not Empty string in SQL server?

How can we check in a SQL Server WHERE condition whether the column is not null and not the empty string ( '' )? 7 Answe...
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SQL keys, MUL vs PRI vs UNI

What is the difference between MUL , PRI and UNI in MySQL? 4 Answers 4 ...
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PadLeft function in T-SQL

... SQL Server now supports the FORMAT function starting from version 2012, so: SELECT FORMAT(id, '0000') FROM TableA will do the trick. If your id or column is in a varchar and represents a number you convert first: SELECT...
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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?

What is the difference between CROSS JOIN and FULL OUTER JOIN in SQL Server? 10 Answers ...
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MySQL dump by query

Is it possible to do mysqldump by single SQL query ? 9 Answers 9 ...
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SELECT INTO a table variable in T-SQL

...y, from which I would like to insert all rows into a table variable, but T-SQL doesn't allow it. 8 Answers ...
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Reading 64bit Registry from a 32bit application

... compiled for AnyCPU. Our build server is a 64bit machine, and has a 64bit SQL Express instance installed. 6 Answers ...
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'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error

...n use this JDBC URL directly in your data source configuration: jdbc:mysql://yourserver:3306/yourdatabase?zeroDateTimeBehavior=convertToNull share | improve this answer | ...
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An explicit value for the identity column in table can only be specified when a column list is used

... Summary SQL Server won't let you insert an explicit value in an identity column unless you use a column list. Thus, you have the following options: Make a column list (either manually or using tools, see below) OR make the identit...