大约有 47,000 项符合查询结果(耗时:0.0318秒) [XML]

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Splitting string into multiple rows in Oracle

... be an improved way (also with regexp and connect by): with temp as ( select 108 Name, 'test' Project, 'Err1, Err2, Err3' Error from dual union all select 109, 'test2', 'Err1' from dual ) select distinct t.name, t.project, trim(regexp_substr(t.error, '[^,]+', 1, levels.column_value...
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Detect if value is number in MySQL

... This should work in most cases. SELECT * FROM myTable WHERE concat('',col1 * 1) = col1 It doesn't work for non-standard numbers like 1e4 1.2e5 123. (trailing decimal) share ...
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How to use GROUP BY to concatenate strings in SQL Server?

...S (1,'B',8) INSERT INTO #YourTable ([ID],[Name],[Value]) VALUES (2,'C',9) SELECT [ID], STUFF(( SELECT ', ' + [Name] + ':' + CAST([Value] AS VARCHAR(MAX)) FROM #YourTable WHERE (ID = Results.ID) FOR XML PATH(''),TYPE).value('(./text())[1]','VARCHAR(MAX)') ,1,2,'') AS NameVa...
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How do I split a string so I can access item x?

...0, PATINDEX('%|%', @products)) SELECT @individual SET @products = SUBSTRING(@products, LEN(@individual + '|') + 1, LEN(@products)) END ELSE BEGIN SET @individu...
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Copy data into another table

... If both tables are truly the same schema: INSERT INTO newTable SELECT * FROM oldTable Otherwise, you'll have to specify the column names (the column list for newTable is optional if you are specifying a value for all columns and selecting columns in the same order as newTable's schema)...
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Difference between “read commited” and “repeatable read”

...nd consider you have a simple task like the following: BEGIN TRANSACTION; SELECT * FROM T; WAITFOR DELAY '00:01:00' SELECT * FROM T; COMMIT; That is a simple task that issue two reads from table T, with a delay of 1 minute between them. under READ COMMITTED, the second SELECT may return any da...
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Can I apply the required attribute to fields in HTML5?

How can I check if a user has selected something from a <select> field in HTML5? 13 Answers ...
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited

... If you're using SQL Server 2005, you could use the FOR XML PATH command. SELECT [VehicleID] , [Name] , (STUFF((SELECT CAST(', ' + [City] AS VARCHAR(MAX)) FROM [Location] WHERE (VehicleID = Vehicle.VehicleID) FOR XML PATH ('')), 1, 2, '')) AS Locations FROM [...
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Select mySQL based only on month and year

... SELECT * FROM projects WHERE YEAR(Date) = 2011 AND MONTH(Date) = 5 share | improve this answer | f...
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invalid command code ., despite escaping periods, using sed

Being forced to use CVS for a current client and the address changed for the remote repo. The only way I can find to change the remote address in my local code is a recursive search and replace. ...