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SQL中使用update inner join和delete inner join;Oracle delete join替代...

... 下面是Oracle的: Sql代码 DELETE TABLE1 where KHID exists ( select KHID from table2 where FWDWID=8) Sql代码 DELETE TABLE1 where exists ( select 1 from table2 where and table1.khid=table2.khid and FWDWID=8); Oracle的delete与join如何使用 delete from A where sid i...
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Oracle 分组后取每组第一条数据 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...据Oracle 分组后取每组第一条数据的SQL如下,亲测有效:SELECT * FROM (SELECT ROW_NUMBER() OVER(PARTITION BY T field1, T Oracle 分组后取每组第一条数据的SQL如下,亲测有效: SELECT * FROM (SELECT ROW_NUMBER() OVER(PARTITION BY T.field1, T.field2 ORDER...
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How to comment out a block of code in Python [duplicate]

... vim with nerdcommenter. Select the block you want and ,c<space> – dev_nut Oct 10 '14 at 22:37 add a comment ...
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Will #if RELEASE work like #if DEBUG does in C#?

...nstant defined for release mode. Check your project settings under build. Selecting [Define DEBUG constant] under Project -> Build is like including #define DEBUG at the beginning of every file. If you want to define a RELEASE constant for the release configuration go to: Project Properties ...
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How to get a one-dimensional scalar array as a doctrine dql query result?

...as callback, instead of writing a closure. $result = $em->createQuery("SELECT a.id FROM Auction a")->getScalarResult(); $ids = array_map('current', $result); See Petr Sobotka's answer below for additional info regarding memory usage. PHP >= 5.5 As jcbwlkr's answered below, the rec...
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Detecting taps on attributed text in a UITextView in iOS

... It doesn't seem to work, when you have not-selectable UITextView – Paul Brewczynski Mar 2 '14 at 22:37  |  sho...
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Change auto increment starting number?

...foobar(moobar) values ("def"); INSERT INTO foobar(moobar) values ("xyz"); select * from foobar; '10', 'abc' '11', 'def' '12', 'xyz' This auto increments the id column by one starting at 10. Auto increment in MySQL by 5, starting at 10: drop table foobar create table foobar( id IN...
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How to reformat JSON in Notepad++?

..., "onclick" : "CloseDoc()" } ] } } } Tip: Select the code you want to reformat, then Plugins | JSTool | JSFormat. share | improve this answer | ...
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Manually put files to Android emulator SD card

... Card through the Android Perspective (it is called DDMS in Eclipse). Just select the Emulator in the left part of the screen and then choose the File Explorer tab. Above the list with your files should be two symbols, one with an arrow pointing at a phone, clicking this will allow you to choose a f...
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iPhone Simulator suddenly started running very slow

... Go to the simulator's Debug menu and select "Toggle Slow Animations". Update: In Xcode 10, it's just "Slow Animations": share | improve this answer ...