大约有 7,000 项符合查询结果(耗时:0.0334秒) [XML]

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Tools for Generating Mock Data? [closed]

... If you are looking or willing to use something MySQL-specific, you could take a look at Super Smack. It is currently maintained by Tony Bourke. Super Smack allows you to generate random data to insert into your database tables. It is customizable, allowing you to use...
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Comparing date ranges

In MySQL, If I have a list of date ranges (range-start and range-end). e.g. 10 Answers ...
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Hibernate: “Field 'id' doesn't have a default value”

...ns but again got same error what mistake i do i don't know......I am using mysql data base. – Krunal Patel Feb 10 '15 at 8:46 ...
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WHERE vs HAVING

...elf (for example select 1 as "number" ) after HAVING and not WHERE in MySQL? 7 Answers ...
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SQL MAX of multiple columns?

... for those who came here looking for a MySQL way, take a look to @bajafresh4life reply: stackoverflow.com/a/331873/1412157 – LucaM May 22 '15 at 13:23 ...
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Counting DISTINCT over multiple columns

...INCT concat(DocumentId, DocumentSessionId)) FROM DocumentOutputItems; In MySQL you can do the same thing without the concatenation step as follows: SELECT count(DISTINCT DocumentId, DocumentSessionId) FROM DocumentOutputItems; This feature is mentioned in the MySQL documentation: http://dev.my...
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互联网健身的火爆:技术驱动是内因 资本只是点缀 - 资讯 - 清泛网 - 专注C/...

...网健身的创业者们来讲是亟待解决的问题。无论创业者们如何解决这些问题,“业余是细流,专业是大坝”这个基本的原则才是保证整个产品科学发展的关键因素。 改变四:比赛还是要打的,关键是怎么打 对于很多日常的健...
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What is the difference between a schema and a table and a database?

...ction of tables. A DBMS (Database Management System) is the software (like MySQL, SQL Server, Oracle, etc) that manages and runs a database. share | improve this answer | fol...
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How to drop all user tables?

... Being new to Oracle and I'm more familiar with MySQL; reseting a DB seems difficult. IN MySQL a USER is separate to a DATABASE. DROP USER username CASCADE worked for me. But in MySQL all I would have to do is DROP DATABASE and create a new one – gawp...
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为什么说自媒体到了最危险的时期? - 资讯 - 清泛网 - 专注C/C++及内核技术

...、资金等需求只是第一个层面的需求,更深层次的需求是如何找到适合自己的发展道路,平台不仅仅是输血,更多是要引导和一起探索。 目前能够做这件事情的,只有BAT。在现有BAT的布局中,阿里热衷于投资媒体,百度目前有...