大约有 6,000 项符合查询结果(耗时:0.0288秒) [XML]

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Spring DAO vs Spring ORM vs Spring JDBC

...emplate class, that removes plumbing code and helps you concentrate on the SQL query and parameters. You just need to configure it with a DataSource, and you can then write code like this: int nbRows = jdbcTemplate.queryForObject("select count(1) from person", Integer.class); Person p = jdbcTempla...
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Drop a temporary table if it exists

I have two lines of code in SQL that create two tables on the fly, i need to do something like 3 Answers ...
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Disable all table constraints in Oracle

... It is better to avoid writing out temporary spool files. Use a PL/SQL block. You can run this from SQL*Plus or put this thing into a package or procedure. The join to USER_TABLES is there to avoid view constraints. It's unlikely that you really want to disable all constraints (including ...
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LINQ: Select an object and change some properties without creating a new object

...body cannot be converted to an expression tree" error. Its not for LINQ to SQL, any advice? – surya Feb 15 '12 at 16:22 ...
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Convert varchar to uniqueidentifier in SQL Server

...e dashses from GUIDs when serializing, making it harder to copy paste into SQL to debug. – David Cumps Jan 23 '13 at 9:41 add a comment  |  ...
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Add alternating row color to SQL Server Reporting services report

How do you shade alternating rows in a SQL Server Reporting Services report? 18 Answers ...
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Equivalent of varchar(max) in MySQL?

What is the equivalent of varchar(max) in MySQL? 6 Answers 6 ...
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COALESCE Function in TSQL

Can someone explain how the COALESCE function in TSQL works? The syntax is as follows 7 Answers ...
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Using pg_dump to only get insert statements from one table within database

...ements from one specific table within a database using pg_dump in PostgreSQL. 4 Answers ...
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How do I use regex in a SQLite query?

I'd like to use a regular expression in sqlite, but I don't know how. 17 Answers 17 ...