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1. Create temporary table insert into mysql update#
2. Create temporary table insert into mysql code#

WHERE id = object_id ( 'tempdb.#pack1_vars_' + CAST ( AS VARCHAR ) ) and xtype = 'U' ) BEGIN EXEC ( 'CREATE TABLE #pack1_vars_' + + ' (name VARCHAR(30), cdate DATETIME)' ) EXEC ( 'INSERT INTO #pack1_vars_' + + ' VALUES (' 'Company Name' ', GETDATE())' ) END END

Create temporary table insert into mysql code#

You can use function to generate unique table names in each session.īefore you can use variables, you have to call initialization code that creates and initializes the table in procedures or functions that use the variable.ĪS BEGIN IF NOT EXISTS ( SELECT * FROM tempdb. Unique global temporary table for each sessionĮvery session should create its own global temporary table for each package containing variables. In contract to local temporary tables, once you create a global temporary table, it becomes visible in any procedures and application.īut the global temporary table is also visible in other sessions, so you need to add some logic to avoid conflicts. You can use global temporary tables to emulate Oracle package variables.

Create temporary table insert into mysql update#

Then you can use SQL SELECT and UPDATE statements to retrieve and update values:ĭECLARE VARCHAR (30 ) SELECT =name FROM #pack1_vars UPDATE #pack1_vars SET name = 'New value'Īdvantages: Relatively easy to use, no conflicts with other sessions, data are cleaned automatically Disadvantages: Needs creation by each application, not easy to track and manage in case of large number of local temporary tables (a lot of packages with variables).

INSERT INTO #pack1_vars VALUES ( 'Company Name', GETDATE ( ) ) But due to visibility limitations (see above), you have to create and initialize a local temporary table in the application (for example, right after connection). You can use local temporary tables to emulate Oracle package variables. Package variables are not shared between Oracle sessions (connections), each session has its own copy of data in the variables. In Oracle, package variables are global variables that can store values until the end of the session, and shared between all procedures and functions in the package. No errors shown during procedures creation, but we get a run-time error. Msg 208, Level 16, State 1, Procedure sp_use_tempt, Line 6 The local temporary table cannot be referenced by the stored procedure or application that called the stored procedure that created the local temporary table. This means that this local temporary table can be referenced only by nested stored procedures.

If a local temporary table created in a stored procedure, it is dropped automatically when the stored procedure is finished. So if you create a local temporary table in one session, you cannot access it in other sessions. In SQL Server, local temporary tables are visible only in the current session.

A local temporary table is created using CREATE TABLE statement with the table name prefixed with single number sign (#table_name).