大约有 6,000 项符合查询结果(耗时:0.0315秒) [XML]

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T-SQL: Selecting rows to delete via joins

... In PostgreSQL syntax with join doesn't work but it is possible to use "using" keyword. DELETE from TableA a using TableB b where b.Bid = a.Bid and [my filter condition] – bartolo-otrit Jun 13 '12...
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PostgreSQL: Show tables in PostgreSQL

What's the equivalent to show tables (from MySQL) in PostgreSQL? 24 Answers 24 ...
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How to delete large data of table in SQL without log?

...rform a checkpoint. This is how I would do it and take this article http://sqlperformance.com/2013/03/io-subsystem/chunk-deletes as reference, with performance tests and graphs: DECLARE @Deleted_Rows INT; SET @Deleted_Rows = 1; WHILE (@Deleted_Rows > 0) BEGIN BEGIN TRANSACTION -- Del...
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Learning about LINQ [closed]

...ject reference comparison Apply aggregates to empty collections in LINQ to SQL queries Delay loading a property in LINQ to SQL Use table-valued functions with eager loading turned on Put joins in the correct order in a LINQ to Objects query Compose a LINQ query inside a loop http://www.aspnetpro.c...
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List of tables, db schema, dump etc using the Python sqlite3 API

For some reason I can't find a way to get the equivalents of sqlite's interactive shell commands: 11 Answers ...
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Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... Mongo DB数据库保存数据 (NoSQL, Document Store,跨平台,跨语言) Web API提供数据服务 MVC作数据展示 Knockoutjs动态绑定客户端数据,这里有一个简单的介绍 服务URI Pattern Action Http verb URI Get contact list GET /api/contacts Get filtered contacts...
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SQL : BETWEEN vs =

In SQL Server 2000 and 2005: 11 Answers 11 ...
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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

... with JDBC, you need to be sure that you can connect to the database using SQL*Plus. If you're not familiar with SQL*Plus, it's a command-line tool for connecting to Oracle databases that has been a standard part of Oracle for a long time and it is included with Oracle XE. When connecting to an Or...
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Equals(=) vs. LIKE

When using SQL, are there any benefits of using = in a WHERE clause instead of LIKE ? 15 Answers ...
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How can I group by date time column without taking time into consideration

... do you know how I would do the same with LINQ to SQL? – The Muffin Man May 19 '11 at 5:56 1 ...