大约有 6,000 项符合查询结果(耗时:0.0290秒) [XML]

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What is the difference between HAVING and WHERE in SQL?

What is the difference between HAVING and WHERE in an SQL SELECT statement? 20 Answers ...
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LEN function not including trailing spaces in SQL Server

I have the following test table in SQL Server 2005: 10 Answers 10 ...
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Retrieve column names from java.sql.ResultSet

With java.sql.ResultSet is there a way to get a column's name as a String by using the column's index? I had a look through the API doc but I can't find anything. ...
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How to select date without time in SQL

When I select date in SQL it is returned as 2011-02-25 21:17:33.933 . But I need only the Date part, that is 2011-02-25 . How can I do this? ...
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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?

I would like to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement. 11 ...
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SQL Server 2005 How Create a Unique Constraint?

How do I create a unique constraint on an existing table in SQL Server 2005? 10 Answers ...
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What represents a double in sql server?

...perties in C# which are double and I want to store these in a table in SQL Server, but noticed there is no double type, so what is best to use, decimal or float ? ...
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Difference between natural join and inner join

...g natural joins like the plague, because natural joins are: not standard sql [SQL 92] and therefore not portable, not particularly readable (by most SQL coders) and possibly not supported by various tools/libraries not informative; you can't tell what columns are being joined on without referring ...
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Create SQL script that create database and tables

I have a SQL database and tables that I would like to replicate in another SQL Server. I would like to create a SQL script that creates the database and tables in a single script. ...
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SQL standard to escape column names?

Is there a SQL standard to escape a column name? If not what works for MySQL and SQLite? does it also work for SQL Server? ...