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Set a DateTime database field to “Now”
In VB.net code, I create requests with SQL parameters. It I set a DateTime parameter to the value DateTime.Now, what will my request look like ?
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T-SQL: Selecting rows to delete via joins
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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...
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...
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...
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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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...
BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ap的github官网地址：https: github com bchavez BugTrap下载源码可使用CMake进行编译，这里提供一下编译好的dll及lib文件（Unicode BugTrap的github官网地址：https://github.com/bchavez/BugTrap
下载源码解压后可直接进行编译，
这里提供一下编译...
mfc 画圆角矩形 - C/C++ - 清泛网 - 专注C/C++及内核技术
...{3, 3};
DrawRoundRect(this->GetDC(), rc, sizeRect);
}
这里直接使用的窗口DC，实际应用中为了防止出现闪屏现象，需要使用MemDC，调用方法类似，大家自行调整下。
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《MFC采用双缓存解决闪屏问题(使用了双缓存还是闪屏的)...