大约有 3,556 项符合查询结果(耗时:0.0172秒) [XML]

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How to get sp_executesql result into a variable?

I have a piece of dynamic SQL I need to execute, I then need to store the result into a variable. 10 Answers ...
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Which method performs better: .Any() vs .Count() > 0?

...but if you have part of code that's slow and it uses EF, test with direct TSQL and compare performance rather than relying on assumptions (that .Any() is ALWAYS faster than .Count() > 0). While I agree with most up-voted answer and comments - especially on the point Any signals developer inten...
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Strange SQLAlchemy error message: TypeError: 'dict' object does not support indexing

I am using hand crafted SQL to fetch data from a PG database, using SqlAlchemy. I am trying a query which contains the SQL like operator '%' and that seems to throw SqlAlcjhemy through a loop: ...
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SQL how to make null values come last when sorting ascending

I have a SQL table with a datetime field. The field in question can be null. I have a query and I want the results sorted ascendingly by the datetime field, however I want rows where the datetime field is null at the end of the list, not at the beginning. ...
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Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “Latin1_General_CI_

...ith (as follows): DECLARE @Table TABLE (CompareMessage VARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL) – FrostbiteXIII Jun 23 '14 at 10:57 1 ...
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Altering a column to be nullable

... Assuming SQL Server (based on your previous questions): ALTER TABLE Merchant_Pending_Functions ALTER COLUMN NumberOfLocations INT NULL Replace INT with your actual datatype. ...
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SQL SERVER: Get total days between two dates

... SQL Server DateDiff DECLARE @startdate datetime2 = '2007-05-05 12:10:09.3312722'; DECLARE @enddate datetime2 = '2009-05-04 12:10:09.3312722'; SELECT DATEDIFF(day, @startdate, @enddate); ...
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MySql export schema without data

I'm using a MySql database with a Java program, now I want to give the program to somebody else. 13 Answers ...
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Plsqldev SQL含中文查无结果 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

Plsqldev SQL含中文查无结果设置环境变量:NLS_LANG值为:SIMPLIFIED CHINESE_CHINA.ZHS16GBK设置环境变量:NLS_LANG 值为:SIMPLIFIED CHINESE_CHINA.ZHS16GBKPlsqldev 中文 无结果
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卸载SQL Server2000后不能再次安装的问题解决方法 - 爬虫/数据库 - 清泛IT...

曾经由于磁盘空间的问题,卸载了SQL Server2000,可当再次要把它安装上的时候,却怎么也不行了。无论是安装哪一个版本,永远都是同样的错误提示,说是有一个文件已经挂起,必须重新启动计算机。那okay啦,重新启动,再次安...