


Drop All Database Objects in SQL Server 2005 with One Script
When managing a database, it is sometimes necessary to clean up or reset the environment. Dropping all tables, stored procedures, triggers, constraints, and dependencies can be a tedious task when done manually, but it can be automated with a single SQL statement.
The Script
The following script will drop all non-system stored procedures, views, functions, primary key constraints, foreign key constraints, and tables in the current database:
/* Drop all non-system stored procs */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name]) WHILE @name is not null BEGIN SELECT @SQL = 'DROP PROCEDURE [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Procedure: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all views */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP VIEW [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped View: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all functions */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP FUNCTION [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Function: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 AND [name] > @name ORDER BY [name]) END GO /* Drop all Foreign Key constraints */ DECLARE @name VARCHAR(128) DECLARE @constraint VARCHAR(254) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME) WHILE @name is not null BEGIN SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) WHILE @constraint IS NOT NULL BEGIN SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint) +']' EXEC (@SQL) PRINT 'Dropped FK Constraint: ' + @constraint + ' on ' + @name SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND CONSTRAINT_NAME @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) END SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME) END GO /* Drop all Primary Key constraints */ DECLARE @name VARCHAR(128) DECLARE @constraint VARCHAR(254) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME) WHILE @name IS NOT NULL BEGIN SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) WHILE @constraint is not null BEGIN SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint)+']' EXEC (@SQL) PRINT 'Dropped PK Constraint: ' + @constraint + ' on ' + @name SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND CONSTRAINT_NAME @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME) END SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME) END GO /* Drop all tables */ DECLARE @name VARCHAR(128) DECLARE @SQL VARCHAR(254) SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name]) WHILE @name IS NOT NULL BEGIN SELECT @SQL = 'DROP TABLE [dbo].[' + RTRIM(@name) +']' EXEC (@SQL) PRINT 'Dropped Table: ' + @name SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 AND [name] > @name ORDER BY [name]) END GO
How to Use
To use this script, follow these steps:
- Copy and paste the script into a new query window in SQL Server Management Studio (SSMS).
- Click the "Execute" button to run the script.
- The script will output the names of each object as it is dropped.
Note: Be cautious when running this script, as it will permanently delete all objects from the current database.
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