Wednesday 22 July 2015

T sql create temp table from select statement

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Using Temp Tables in SSIS - SQL Server Performance


  http://www.sql-server-performance.com/2013/temp-tables-ssis/
Server 2 will be the server where we need to create the temp table using Server 1 and thereafter use that temp table in the queries executed on Server2. Here, we will create a TestDestination table and map the Source and Destination columns : Now, as we mapped it in design mode, we can modify it later to use the Temporary table

SQL Server: SELECT Statement


  http://www.techonthenet.com/sql_server/select.php
Example - Select individual fields from one table You can also use the SQL Server SELECT statement to select individual fields from the table, as opposed to all fields from the table

  http://www.adp-gmbh.ch/ora/sql/create_table.html
Mintrans and Maxtrans See mintrans and maxtrans pctfree and pctused See pctfree and pctused Displaying a tables definition In SQL*Plus, a table's definition can be displayed with describe. A heap table is created like this: create table t ( a number, b varchar2(10) ) It is possible to create the constraints together with the create statement

Stairway to T-SQL DML Level 12: Using the MERGE Statement - SQLServerCentral


  http://www.sqlservercentral.com/articles/Stairway+Series/92557/
Prior to showing you my MERGE statement I need to create and populate my target CurrentListing table, as well as create a table that will contain the monthly current listings I get from my another source. To maintain my CurrentListing table all I need to do is create the right MATCHED and NOT MATCHED conditions to determine when to do an INSERT or UPDATE, and then include a new NOT MATCHED BY SOURCE condition to perform the DELETE operation

SQL Server T-SQL Tuning - Temp Tables, Table Variables and Union - SQL Server Performance


  http://www.sql-server-performance.com/2014/sql-server-t-sql-tuning-temp-table-union/
Ensure there is sufficient indexing (clustered or non-clustered) if the temp table is used within the inner join , group by , order by or where conditions. Impact on CPU utilization due to Cxpacket waits resulting from insufficient indexing on temp tables that can be mitigated if temp tables are well indexed with clustered and non-clustered indexes

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