大约有 6,000 项符合查询结果(耗时:0.0294秒) [XML]

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Better techniques for trimming leading zeros in SQL Server?

...rflow.com/questions/662383/better-techniques-for-trimming-leading-zeros-in-sql-server DECLARE @retVal VarChar(128), @pattern varChar(10) SELECT @pattern = '%[^'+@stripChar+']%' SELECT @retVal = CASE WHEN SUBSTRING(@string, PATINDEX(@pattern, @string+'.'), LEN(@string)) = '' T...
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How to force LINQ Sum() to return 0 while source collection is empty

... handled method by the EF Queryable Provider and will generate the related SQL statement. – Simon Belanger Aug 11 '15 at 1:52 ...
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MySQL query to get column names?

I'd like to get all of a mysql table's col names into an array in php? 21 Answers 21 ...
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Case in Select Statement

I have an SQL statement that has a CASE from SELECT and I just can't get it right. Can you guys show me an example of CASE where the cases are the conditions and the results are from the cases. For example: ...
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sql ORDER BY multiple values in specific order?

Ok I have a table with a indexed key and a non indexed field. I need to find all records with a certain value and return the row. I would like to know if I can order by multiple values. ...
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Java: Get month Integer from Date

... if you use date.toInstant() and you happen to be working with a java.sql.Date (the child of java.util.Date) then you will get an UnsupportedOperationException. Try new java.sql.Date(src.getTime()).toLocalDate() – Adam Feb 24 '17 at 14:15 ...
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How can I export the schema of a database in PostgreSQL?

...broke down but fortunately I backed up the folder C:\Program Files\PostgreSQL. 8 Answers ...
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Entity Framework: There is already an open DataReader associated with this Command

...lso try to cast the query to ObjectQuery and call ToTraceString to see the SQL command. It is hard to track. I always turn on MARS. – Ladislav Mrnka Feb 1 '11 at 22:27 2 ...
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MySQL “incorrect string value” error when save unicode string in Django

...em for me. The root cause being: You cannot store 4-byte characters in MySQL with the utf-8 character set. MySQL has a 3 byte limit on utf-8 characters (yes, it's wack, nicely summed up by a Django developer here) To solve this you need to: Change your MySQL database, table and columns to use...
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How to get Top 5 records in SqLite?

... but limit dont work in sub query sqlite..whats the alternative – Nauman Ash Aug 16 at 11:51 add a comment  |  ...