大约有 47,000 项符合查询结果(耗时:0.0531秒) [XML]

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How to change collation of database, table, column?

...he OP asked: How to change collation of database, table, column? The selected answer just states it on table level. Changing it database wide: ALTER DATABASE <database_name> CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; Changing it per table: ALTER TABLE <table_name> CON...
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MySQL skip first 10 results

Is there a way in MySQL to have the first 10 result from a SELECT query skipped? I'd like it to work something like LIMIT. ...
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SQL Server equivalent to Oracle's CREATE OR REPLACE VIEW

...y create or replace views or stored procedures as follows. IF NOT EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[vw_myView]')) EXEC sp_executesql N'CREATE VIEW [dbo].[vw_myView] AS SELECT ''This is a code stub which will be replaced by an Alter Statement'' as [code_stub]' ...
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Use a LIKE statement on SQL Server XML Datatype

If you have a varchar field you can easily do SELECT * FROM TABLE WHERE ColumnA LIKE '%Test%' to see if that column contains a certain string. ...
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CSS selector - element with a given child [duplicate]

I'm looking to make a selector which will select all elements if they have a specific child element. For example, select all <div> with a child <span> . ...
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Postgresql aggregate array

... Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1 SELECT s.name, array_agg(g.Mark) as marks FROM student s LEFT JOIN Grade g ON g.Student_id = s.Id GROUP BY s.Id By the way, if you are using Postgres 9.1, you don't need to repeat the columns on SELECT to GROUP BY,...
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jquery data selector

I need to select elements based on values stored in an element's .data() object. At a minimum, I'd like to select top-level data properties using selectors, perhaps like this: ...
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How can I set the color of a selected row in DataGrid

The default background color of a selected row in DataGrid is so dark that I can't read it. Is there anyway of overriding it? ...
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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

...table is already locked by some query. For example, you may have executed "select for update" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query. share ...
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how to schedule a job for sql query to run daily?

...QL Server Agent node and right click the Jobs node in SQL Server Agent and select 'New Job' In the 'New Job' window enter the name of the job and a description on the 'General' tab. Select 'Steps' on the left hand side of the window and click 'New' at the bottom. In the 'Steps' window enter a step n...