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  2. ); CREATE TABLE ##GlobalTemporaryTable -- Global temporary table - note it starts with ##. ( Col1 int, Col2 varchar(10) .... ); Temporary table names start with # or ## - The first is a local temporary table and the last is a global temporary table. Here is one of many articles describing the differences between them.

  3. Note also that any temporary table created inside a stored procedure is automatically dropped when the stored procedure finishes executing. If stored procedure A creates a temp table and calls stored procedure B, then B will be able to use the temporary table that A created.

  4. Now you can check how much space a temporary table uses by running the following script to create a temporary table with one column and populate it with one row: CREATE TABLE #TempTable ( ID INT ) ; INSERT INTO #TempTable ( ID ) VALUES ( 1 ) ; GO SELECT session_id, database_id, user_objects_alloc_page_count FROM sys.dm_db_session_space_usage ...

  5. I have two lines of code in SQL that create two tables on the fly, i need to do something like. IF TABLE EXISTS DROP IT AND CREATE IT AGAIN ELSE CREATE IT my lines are the following ones. CREATE TABLE ##CLIENTS_KEYWORD(client_id int) CREATE TABLE ##TEMP_CLIENTS_KEYWORD(client_id int)

  6. Local and global temporary tables in SQL Server

    stackoverflow.com/questions/2920836

    Global temporary tables for SQL Server (initiated with ## table name) are stored in tempdb and shared among all users’ sessions across the whole SQL Server instance. Azure SQL Database supports global temporary tables that are also stored in tempdb and scoped to the database level.

  7. However, in Oracle, only the data in a temporary table is temporary. The table is a regular object visible to other sessions. It is a bad practice to frequently create and drop temporary tables in Oracle. CREATE GLOBAL TEMPORARY TABLE today_sales(order_id NUMBER) ON COMMIT PRESERVE ROWS;

  8. A Local Temporary Table is only for the connection in which it was created. Each Local Temporary Table has a random value at the end of the table name. A Local Temporary Table is automatically dropped when the existing connection is closed, or the user can explicitly drop it with the following command "drop table #TempTable".

  9. removing a temp table in SQL server? - Stack Overflow

    stackoverflow.com/questions/9784599

    The root cause of the problem is that a temporary table with the same name is being created two times in the same batch. First by CREATE TABLE statement and second by SELECT .. INTO statement As per Microsoft BOL, "If more than one temporary table is created inside a single stored procedure or batch, they must have different names."

  10. Finding the data types of a SQL temporary table

    stackoverflow.com/questions/7486941

    In the Table Structure, the Table Name shows something like ‘#TempTable_____0000000004CB’. Actually, the total length of each and every Temp Table name will be 128 . To handle the Same Temp Table name in Multiple Sessions differently, SQL Server will automatically add some underscores in between and alphanumeric’s at end.

  11. Basic operation of Temporary table is given below, modify and use as per your requirements, -- CREATE A TEMP TABLE. CREATE TABLE #MyTempEmployeeTable(tempUserID varchar(MAX), tempUserName varchar(MAX) ) -- INSERT VALUE INTO A TEMP TABLE. INSERT INTO #MyTempEmployeeTable(tempUserID,tempUserName) SELECT userid,username FROM users where userid =21