大约有 37,000 项符合查询结果(耗时:0.0218秒) [XML]

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LINQ-to-SQL vs stored procedures? [closed]

...umber of supported databases will only increase. Sprocs are not always portable between databases, either because of varying syntax or feature support (if the database supports sprocs at all). Deployment: Others have mentioned this already, but it's easier to deploy a single assembly than to deploy...
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Is there a way to access the “previous row” value in a SELECT statement?

I need to calculate the difference of a column between two lines of a table. Is there any way I can do this directly in SQL? I'm using Microsoft SQL Server 2008. ...
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PadLeft function in T-SQL

I have the following table A: 17 Answers 17 ...
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Are PostgreSQL column names case-sensitive?

I have a db table say, persons in Postgres handed down by another team that has a column name say, "first_Name" . Now am trying to use PG commander to query this table on this column-name. ...
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How do I convert from BLOB to TEXT in MySQL?

... Usage: SELECT CONVERT(column USING utf8) FROM table; – bmaupin Oct 2 '12 at 19:32 4 ...
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MySQL: What's the difference between float and double?

... Perhaps this example could explain. CREATE TABLE `test`(`fla` FLOAT,`flb` FLOAT,`dba` DOUBLE(10,2),`dbb` DOUBLE(10,2)); We have a table like this: +-------+-------------+ | Field | Type | +-------+-------------+ | fla | float | | flb | float |...
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How to select only the records with the highest date in LINQ

I have a table, 'lasttraces', with the following fields. 5 Answers 5 ...
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Spring JPA selecting specific columns

...ase operations. However I don't know how to select specific columns from a table in Spring JPA? 14 Answers ...
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MySQL “Group By” and “Order By”

I want to be able to select a bunch of rows from a table of e-mails and group them by the from sender. My query looks like this: ...
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How can I get a specific number child using CSS?

I have a table whose td s are created dynamically. I know how to get the first and last child but my question is: 2 Answ...