大约有 43,000 项符合查询结果(耗时:0.0496秒) [XML]

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“CASE” statement within “WHERE” clause in SQL Server 2008

... Try the following: select * From emp_master where emp_last_name= case emp_first_name when 'test' then 'test' when 'Mr name' then 'name' end share | ...
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Delete all Duplicate Rows except for One in MySQL? [duplicate]

...te. INSERT INTO tempTableName(cellId,attributeId,entityRowId,value) SELECT DISTINCT cellId,attributeId,entityRowId,value FROM tableName; share | improve this answer | ...
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Stash only one file out of multiple files that have changed with Git?

... You can also use git stash save -p "my commit message". This way you can select which hunks should be added to stash, whole files can be selected as well. You'll be prompted with a few actions for each hunk: y - stash this hunk n - do not stash this hunk q - quit; do not stash this hun...
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Java compiler level does not match the version of the installed Java project facet

...he Project Properties dialog. There is a Project Facets item on the left, select it, look for the Java facet on the list, choose which version you want to use for the project and apply. share | i...
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How to Get True Size of MySQL Database?

... would like to know how much space does my MySQL database use, in order to select a web host. I found the command SHOW TABLE STATUS LIKE 'table_name' so when I do the query, I get something like this: ...
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How to get the Full file path from URI

...but if i do it like the MediaStore Solution, it won't work if the app user selects eg Astro as browser, instead of Music Player. How do I solve this? ...
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What is Func, how and when is it used

...ied to any particular functionality. For example, consider the Enumerable.Select extension method. The pattern is: for every item in a sequence, select some value from that item (e.g., a property) and create a new sequence consisting of these values. The placeholder is: some selector function tha...
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How can I drop all the tables in a PostgreSQL database?

... You can write a query to generate a SQL script like this: select 'drop table "' || tablename || '" cascade;' from pg_tables; Or: select 'drop table if exists "' || tablename || '" cascade;' from pg_tables; In case some tables are automatically dropped due to cascade option in a...
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iOS: How to store username/password within an app?

... 3 right-click on frameworks folder and add existing framework. In Xcode 4 select your project, then select target, go to Build Phases tab and click + under Link Binary With Files) and KeychainItemWrapper .h & .m files into your project, #import the .h file wherever you need to use keychain and ...
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How should I escape commas and speech marks in CSV files so they work in Excel?

...tring value should be returned enclosed in double quotes. Any double quote characters in the value should be escaped with another double quote. If the value does not contain a comma, newline or double quote, then the String value should be returned unchanged. ...