global temporary table oracle 11g performance

User Temp Table:CREATE TABLE #XX(ID int, idvalues int)System Temp Table:CREATE TABLE # #XX(ID int, idvalues int)Difference:The User temporary table is visible only to the session of the user who created the table, not to other processes.This

Oracle learning Data Warehouse (I) Import Oracle 11g Global samples schemaOracle 11g provides an example schema for the Data Warehouse. You can download the sample installation file through the following link. The http://www.oracle.com/technology/products/bi/olap/doc_sample_

creation and deletion of temporary tables, it will certainly affect performance. So Oracle retains the definition of the temporary table until the user drops table. 6. In Oracle, if m

When sorting, grouping and summarizing, and indexing are performed in the Oracle database, a lot of temporary data is generated. If there is an employee information table, the database stores the installation record creation time. If you use the Order BY sorting statement to specify the Order BY employee number, all records generated after sorting are

only use the global temp table to achieve our goal. Well, as the situation is clear, we can write a simple stored procedure like the following: CREATE PROCEDURE gp_findtemptable--2001/10/26 21:36 Zhuzhichao in Nanjing /* Look for a global temporary table named with the

A global temporary table is a temporary table prefixed with '##' and visible to all sessions. Global temporary tables are generally used to share data with everyone. The following is an

table is an independent object for each connection, we can only use a global temporary table for our purpose. Now, the situation is clear. We can write a simple stored procedure like the following: Create procedure gp_findtemptable -- 2001/10/26 21:36 zhuzhichao in Nanjing /* Search for a

The life cycle of the global temporary table persists until the creation session (not the creation level) terminates. For example, if you create a global temporary table in a stored procedure, the

Brief introduction This series of articles is made up of two parts. This article (part 1th) describes how to create a global temporary table CGTT model for database DB2 for z/Os 10 (new feature mode) and DB2 for Linux, UNIX, and Windows 9.7, and how to use Infosphere Data A Rchitect V8.5 performs the following tasks. Create a physical data model using CGTT for

achieve our goal. Well, as the situation is clear, we can write a simple stored procedure like the following: create procedure gp_findtemptable -- 2001/10/26 21:36 zhuzhichao in nanjing /* 寻找以操作员工号命名的全局临时表 * 如无则将out参数置为0并创建该表,如有则将out参数置为1 * 在connection断开连接后,全局临时表会被SQL Server自动回收 * 如发生断电之类的意外,全局临时表虽然还存在于tempdb中, 但是已经失去活性 * 用object_id函数去判断时会认为其不存在. */ @v_userid varchar(6), -- 操作员工号 @i_out int out -- 输出参数 0:没有登录 1:已经登录 as declare @v_sql varchar(100) if object_id(''''tempdb.dbo.##''''+@v_userid)

This article mainly introduces the Oracle database of temporary table usage, I hope to be helpful to everyone's study and work.One: GrammarIn Oracle, you can create the following two types of temporary tables:(1) session-specific tempora