Drop all objects in SQL DB? - sql-server

Question

Does anyone have a script that will drop all objects in a SQL Server DB?
I currently don't have rights to drop and create DBs on the server so am looking for a script to take me back to 'square one'
I've seen some on the web, but they don't do things in the right order or they don't remove everything.

Answer 1

If you use schemas you may find the following script useful:
SET NOCOUNT ON;
DECLARE #OnlyInSchema sysname;
-- Set this to a value to only drop objects in one schema.
-- SET #OnlyInSchema = N'';
DECLARE #Commands TABLE (
[Description] NVARCHAR(MAX),
[Line] NVARCHAR(MAX)
);
DECLARE #Drops TABLE (
[Type] NVARCHAR(2),
[Template] NVARCHAR(MAX)
);
-- -- -- -- -- OBJECTS NOT ASSOCIATED WITH TABLES -- -- -- -- --
INSERT INTO #Drops
SELECT N'AF', N'DROP AGGREGATE $S.$O;' UNION
SELECT N'FN', N'DROP FUNCTION $S.$O;' UNION
SELECT N'FS', N'DROP FUNCTION $S.$O;' UNION
SELECT N'FT', N'DROP FUNCTION $S.$O;' UNION
SELECT N'IF', N'DROP FUNCTION $S.$O;' UNION
SELECT N'P', N'DROP PROCEDURE $S.$O;' UNION
SELECT N'SN', N'DROP SYNONYM $S.$O;' UNION
SELECT N'SQ', N'DROP QUEUE $S.$O;' UNION
SELECT N'TR', N'DROP TRIGGER $S.$O;' UNION
SELECT N'TT', N'DROP TYPE $S.$O;' UNION
SELECT N'TF', N'DROP FUNCTION $S.$O;';
INSERT INTO #Commands
SELECT QUOTENAME(RTRIM([S].[name])) + '.' + QUOTENAME(RTRIM([O].[name])),
REPLACE(REPLACE([D].[Template], '$S', QUOTENAME(RTRIM([S].[name]))), '$O', QUOTENAME(RTRIM([O].[name])))
FROM [sys].[objects] AS [O]
INNER JOIN [sys].[schemas] AS [S] ON [O].[schema_id] = [S].[schema_id]
INNER JOIN #Drops AS [D] ON [O].[type] COLLATE Latin1_General_CS_AS = [D].[Type] COLLATE Latin1_General_CS_AS
WHERE (#OnlyInSchema IS NULL OR [S].[name] COLLATE Latin1_General_CS_AS = #OnlyInSchema)
AND [S].[name] COLLATE Latin1_General_CS_AS <> 'sys'
AND [O].[is_ms_shipped] = 0;
-- -- -- -- -- OBJECTS ASSOCIATED WITH TABLES -- -- -- -- --
DELETE FROM #Drops;
INSERT INTO #Drops
SELECT N'C', N'ALTER TABLE $TS.$TO DROP CONSTRAINT $O;' UNION
SELECT N'D', N'ALTER TABLE $TS.$TO DROP CONSTRAINT $O;' UNION
SELECT N'F', N'ALTER TABLE $TS.$TO DROP CONSTRAINT $O;' UNION
SELECT N'PK', N'ALTER TABLE $TS.$TO DROP CONSTRAINT $O;';
INSERT INTO #Commands
SELECT QUOTENAME(RTRIM([S].[name])) + '.' + QUOTENAME(RTRIM([PO].[name])) + '::' + QUOTENAME(RTRIM([O].[name])),
REPLACE(REPLACE(REPLACE([D].[Template], '$TS', QUOTENAME(RTRIM([S].[name]))), '$O', QUOTENAME(RTRIM([O].[name]))), '$TO', QUOTENAME(RTRIM([PO].[name])))
FROM [sys].[objects] AS [O]
INNER JOIN [sys].[objects] AS [PO] ON [O].[parent_object_id] = [PO].[object_id]
INNER JOIN [sys].[schemas] AS [S] ON [PO].[schema_id] = [S].[schema_id]
INNER JOIN #Drops AS [D] ON [O].[type] COLLATE Latin1_General_CS_AS = [D].[Type] COLLATE Latin1_General_CS_AS
WHERE (#OnlyInSchema IS NULL OR [S].[name] COLLATE Latin1_General_CS_AS = #OnlyInSchema)
AND [S].[name] COLLATE Latin1_General_CS_AS <> 'sys'
AND [O].[is_ms_shipped] = 0;
-- -- -- -- -- ACTUAL DROP -- -- -- -- --
DELETE FROM #Drops;
INSERT INTO #Drops
SELECT N'U', N'DROP TABLE $S.$O;' UNION
SELECT N'V', N'DROP TABLE $S.$O;';
INSERT INTO #Commands
SELECT QUOTENAME(RTRIM([S].[name])) + '.' + QUOTENAME(RTRIM([O].[name])),
REPLACE(REPLACE([D].[Template], '$S', QUOTENAME(RTRIM([S].[name]))), '$O', QUOTENAME(RTRIM([O].[name])))
FROM [sys].[objects] AS [O]
INNER JOIN [sys].[schemas] AS [S] ON [O].[schema_id] = [S].[schema_id]
INNER JOIN #Drops AS [D] ON [O].[type] COLLATE Latin1_General_CS_AS = [D].[Type] COLLATE Latin1_General_CS_AS
WHERE (#OnlyInSchema IS NULL OR [S].[name] COLLATE Latin1_General_CS_AS = #OnlyInSchema)
AND [S].[name] COLLATE Latin1_General_CS_AS <> 'sys'
AND [O].[is_ms_shipped] = 0;
-- -- -- -- -- TABLES -- -- -- -- --
DECLARE #Description NVARCHAR(MAX);
DECLARE #Message NVARCHAR(MAX);
DECLARE #Command NVARCHAR(MAX);
DECLARE CommandCursor CURSOR FOR
SELECT [Description], [Line] FROM #Commands;
OPEN CommandCursor;
FETCH NEXT FROM CommandCursor INTO #Description, #Command;
WHILE ##FETCH_STATUS = 0
BEGIN
SET #Message = N'Dropping ' + #Description + '...';
PRINT #Message;
BEGIN TRY
EXEC sp_executesql #Command;
END TRY
BEGIN CATCH
SET #Message = N'Failed to drop ' + #Description + ':';
PRINT #Message;
PRINT ERROR_MESSAGE()
END CATCH
FETCH NEXT FROM CommandCursor INTO #Description, #Command;
END
CLOSE CommandCursor;
DEALLOCATE CommandCursor;

Answer 2

I found this code on "http://kashyapmakadia.blogspot.com/2009/08/drop-everything-in-sql-server-2005.html" and tried it and it worked just find!! You can find the code there, but if you're in hurry, the code is:
/* 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 [' + 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 [' + 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 [' + 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 [' + 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 [' + 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 [' + 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

Answer 3

You can try the open-source bsn ModuleStore versioning toolkit, which can create an inventory of a database and create a DROP script for a database schema which respects the dependencies of the objects. It currently supports tables, indexes, triggers, views, functions, stored procedures and XML schema collections.
using (ManagementConnectionProvider provider = new ManagementConnectionProvider(connection, "dbo")) {
DatabaseInventory inventory = new DatabaseInventory(provider, "dbo");
string dropScript = string.Join(";\r\nGO\r\n\r\n", inventory.GenerateUninstallSql().ToArray());
}

Answer 4

Select * From sysobjects Where....
Then drop one by one.