大约有 40,000 项符合查询结果(耗时:0.0508秒) [XML]

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MySQL Select Date Equal to Today

I'm trying to run a mysql select statement where it looks at today's date and only returns results that signed up on that current day. I've currently tried the following, but it doesn't seem to work. ...
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In Ruby, is there an Array method that combines 'select' and 'map'?

... I usually use map and compact together along with my selection criteria as a postfix if. compact gets rid of the nils. jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1} => [3, 3, 3, nil, nil, nil] jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1}.compact => ...
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How to use UIScrollView in Storyboard

... Here are the steps with Auto Layout that worked for me on XCode 8.2.1. Select Size Inspector of View Controller, and change Simulated Size to Freeform with height 1000 instead of Fixed. Rename the view of View Controller as RootView. Drag a Scroll View as subview of RootView and rename it as Scr...
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Count the number of occurrences of a string in a VARCHAR field?

... This should do the trick: SELECT title, description, ROUND ( ( LENGTH(description) - LENGTH( REPLACE ( description, "value", "") ) ) / LENGTH("value") ) AS count FROM <tab...
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Tri-state Check box in HTML?

...lternative would be to play with the checkbox transparency for the "some selected" state (as Gmail does used to do in previous versions). It will require some javascript and a CSS class. Here I put a particular example that handles a list with checkable items and a checkbox that allows to se...
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How do I escape a reserved word in Oracle?

In TSQL I could use something like Select [table] from tablename to select a column named "table". 5 Answers ...
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Query to list number of records in each table in a database

... If you're using SQL Server 2005 and up, you can also use this: SELECT t.NAME AS TableName, i.name as indexName, p.[Rows], sum(a.total_pages) as TotalPages, sum(a.used_pages) as UsedPages, sum(a.data_pages) as DataPages, (sum(a.total_pages) * 8) / 1024 as To...
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How can I convert comma separated string into a List

... Here is one way of doing it: List<int> TagIds = tags.Split(',').Select(int.Parse).ToList(); share | improve this answer | follow | ...
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Query grants for a table in postgres

... I already found it: SELECT grantee, privilege_type FROM information_schema.role_table_grants WHERE table_name='mytable' share | improve this...
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How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]

...tatements to execute it: SET FOREIGN_KEY_CHECKS = 0; SET @tables = NULL; SELECT GROUP_CONCAT('`', table_schema, '`.`', table_name, '`') INTO @tables FROM information_schema.tables WHERE table_schema = 'database_name'; -- specify DB name here. SET @tables = CONCAT('DROP TABLE ', @tables); PRE...