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如何從數據庫中刪除所有內容（表、視圖、存儲過程、函數）？

[英]How to delete everything from a database (tables, views, stored procedures, functions)?

 原文  2012-11-15 07:14:24  7   3    sql/ sql-server

問題描述

我想刪除數據庫、表、視圖、存儲過程和函數中的所有內容。 我找到了一些鏈接，但它們不適用於復雜的數據庫。 刪除表失敗。 這是我在本網站上找到並調整的腳本的我自己的版本。

/* Drop all non-system stored procs */ 
DECLARE @name VARCHAR(128) 
DECLARE @SQL VARCHAR(254)
DECLARE @schema VARCHAR(128)

SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name]) 
SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.procedures WHERE [name] = @name)

WHILE @name is not null 
BEGIN 
    SELECT @SQL = 'DROP PROCEDURE [' + @schema + '].[' + 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])
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.procedures WHERE [name] = @name) 
END 
GO 

/* Drop all views */ 
DECLARE @name VARCHAR(128) 
DECLARE @SQL VARCHAR(254)
DECLARE @schema VARCHAR(128)

SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 ORDER BY [name]) 
SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.views WHERE [name] = @name)

WHILE @name IS NOT NULL 
BEGIN 
    SELECT @SQL = 'DROP VIEW [' + @schema + '].[' + 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]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.views WHERE [name] = @name)
END 
GO 

/* Drop all Foreign Key constraints */ 
DECLARE @name VARCHAR(128) 
DECLARE @constraint VARCHAR(254) 
DECLARE @SQL VARCHAR(254) 
DECLARE @schema VARCHAR(128)

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) 
SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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 AND CONSTRAINT_SCHEMA = @schema ORDER BY CONSTRAINT_NAME) 
    WHILE @constraint IS NOT NULL 
    BEGIN 
        SELECT @SQL = 'ALTER TABLE [' + @schema + '].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint) +']' 
        --BEGIN TRY        
            EXEC (@SQL)
            PRINT 'Dropped FK Constraint: ' + @constraint + ' on ' + @name
        --END TRY
        --BEGIN CATCH
        --  PRINT (@SQL)
        --END CATCH
        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 AND CONSTRAINT_SCHEMA = @schema 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) 
SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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) 
DECLARE @schema VARCHAR(128)

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) 
SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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 AND CONSTRAINT_SCHEMA = @schema ORDER BY CONSTRAINT_NAME) 
    WHILE @constraint is not null 
    BEGIN 
        SELECT @SQL = 'ALTER TABLE [' + @schema + '].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint)+']' 
        IF @SQL LIKE '%PK_arrival_detail%' BEGIN PRINT @SQL END
        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) 
SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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) 
DECLARE @schema VARCHAR(128)

SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name]) 
SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.tables WHERE [name] = @name)

WHILE @name IS NOT NULL 
BEGIN 
    SELECT @SQL = 'DROP TABLE [' + @schema + '].[' + 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]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.tables WHERE [name] = @name)
END 
GO 

/* Drop all functions */ 
DECLARE @name VARCHAR(128) 
DECLARE @SQL VARCHAR(254) 
DECLARE @schema VARCHAR(128)

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]) 
SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.objects WHERE [name] = @name)

WHILE @name IS NOT NULL 
BEGIN 
    SELECT @SQL = 'DROP FUNCTION [' + @schema + '].[' + 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]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.objects WHERE [name] = @name)
END 
GO

問題僅在於刪除約束和刪除表。 對於與另一個表有關系的表，它總是失敗。 如何修復我的腳本以使其適用於更復雜的數據庫？

3 個解決方案

解決方案1
 10  2012-11-16 10:40:54

您提供的腳本已基本完成。 我在這里和那里調整了一些 where 條件，以使其在復雜的情況下更加健壯。 此版本支持刪除 2 個名稱相同但架構不同的對象。 我還添加了一個部分來刪除數據庫觸發器，因為它可能會阻止您在某些情況下刪除表。

我已經使用AdventureWorks 數據庫和我自己的數據庫（有些非常復雜）對此進行了測試。

    /* Drop all non-system stored procs */ 
    DECLARE @name VARCHAR(128) 
    DECLARE @SQL VARCHAR(254)
    DECLARE @schema VARCHAR(128)

    SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.procedures WHERE [name] = @name)

    WHILE @name is not null 
    BEGIN 
        SELECT @SQL = 'DROP PROCEDURE [' + @schema + '].[' + RTRIM(@name) +']' 
        --PRINT (@SQL)
        EXEC (@SQL) 
        PRINT 'Dropped Procedure: ' + @name 

        SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name])
        SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.procedures WHERE [name] = @name) 
    END 
    GO 

    /* Drop all database triggers */
    DECLARE @name VARCHAR(128) 
    DECLARE @SQL VARCHAR(254)

    SELECT @name = (SELECT TOP 1 T.name FROM sys.triggers AS T WHERE T.parent_id = 0 /* database trigger */ ORDER BY [name])

    WHILE @name is not null 
    BEGIN 
        SELECT @SQL = 'DROP TRIGGER [' + RTRIM(@name) +'] ON DATABASE' 
        EXEC (@SQL) 
        PRINT 'Dropped TRIGGER: ' + @name 

        SELECT @name = (SELECT TOP 1 T.name FROM sys.triggers AS T WHERE T.parent_id = 0 /* database trigger */ AND [name] > @name ORDER BY [name])
    END 
    GO 

    /* Drop all views */ 
    DECLARE @name VARCHAR(128) 
    DECLARE @SQL VARCHAR(254)
    DECLARE @schema VARCHAR(128)

    SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 ORDER BY [name]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.views WHERE [name] = @name)

    WHILE @name IS NOT NULL 
    BEGIN 
        SELECT @SQL = 'DROP VIEW [' + @schema + '].[' + 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]) 
        SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.views WHERE [name] = @name)
    END 
    GO 

    /* Drop all Foreign Key constraints */ 
    DECLARE @name VARCHAR(128) 
    DECLARE @constraint VARCHAR(254) 
    DECLARE @SQL VARCHAR(254) 
    DECLARE @schema VARCHAR(128)

    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) 
    SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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 AND CONSTRAINT_SCHEMA = @schema ORDER BY CONSTRAINT_NAME) 
        WHILE @constraint IS NOT NULL 
        BEGIN 
            SELECT @SQL = 'ALTER TABLE [' + @schema + '].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint) +']' 
            BEGIN TRY
                EXEC (@SQL)
                PRINT 'Dropped FK Constraint: ' + @constraint + ' on ' + @name
            END TRY
            BEGIN CATCH
                PRINT (@SQL)
            END CATCH
            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 AND CONSTRAINT_SCHEMA = @schema 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) 
    SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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) 
    DECLARE @schema VARCHAR(128)

    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) 
    SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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 AND CONSTRAINT_SCHEMA = @schema ORDER BY CONSTRAINT_NAME) 
        WHILE @constraint is not null 
        BEGIN 
            SELECT @SQL = 'ALTER TABLE [' + @schema + '].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint)+']' 
            --PRINT @SQL
            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 AND CONSTRAINT_SCHEMA = @schema 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) 
    SELECT @schema = (SELECT TOP 1 CONSTRAINT_SCHEMA 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) 
    DECLARE @schema VARCHAR(128)

    SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.tables WHERE [name] = @name)

    WHILE @name IS NOT NULL 
    BEGIN 
        SELECT @SQL = 'DROP TABLE [' + @schema + '].[' + RTRIM(@name) +']' 
        EXEC (@SQL) 
        PRINT 'Dropped Table: ' + @name 
        SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name]) 
        SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.tables WHERE [name] = @name)
    END 
    GO 

    /* Drop all functions */ 
    DECLARE @name VARCHAR(128) 
    DECLARE @SQL VARCHAR(254) 
    DECLARE @schema VARCHAR(128)

    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]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.objects WHERE [name] = @name)

    WHILE @name IS NOT NULL 
    BEGIN 
        SELECT @SQL = 'DROP FUNCTION [' + @schema + '].[' + 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]) 
        SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.objects WHERE [name] = @name)
    END 
    GO 

    /* Drop all types */ 
    DECLARE @name VARCHAR(128) 
    DECLARE @SQL VARCHAR(254) 
    DECLARE @schema VARCHAR(128)

    SELECT @name = (SELECT TOP 1 [name] FROM sys.types WHERE is_user_defined = 1 ORDER BY [name]) 
    SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.types WHERE [name] = @name)

    WHILE @name IS NOT NULL 
    BEGIN 
        SELECT @SQL = 'DROP TYPE [' + @schema + '].[' + RTRIM(@name) +']' 
        EXEC (@SQL) 
        PRINT 'Dropped type: ' + @name 
        SELECT @name = (SELECT TOP 1 [name] FROM sys.types WHERE is_user_defined = 1 AND [name] > @name ORDER BY [name]) 
        SELECT @schema = (SELECT TOP 1 schema_name(schema_id) FROM sys.types WHERE [name] = @name)
    END 
    GO

解決方案2
 2  2012-11-15 07:18:33

請參考這些鏈接： 刪除 SQL Server 數據庫中的所有對象

列出數據庫的架構名稱和表名稱

解決方案3
 1  2012-11-15 13:39:00

我通常會建議與其他答案相同的方法，但由於這似乎對您不起作用，因此這里有一個完全不同的角度......

以正確的順序生成 drop 語句來繞過約束是很復雜的，但幸運的是，有一個完整的模式修改工具的利基市場可以為您解決這個問題。 這是一種對我有用的方法：

  1. 在使用與目標相同版本的 SQL Server 的本地 SQL Server 上創建一個空白數據庫
  2. 下載Red Gate SQL Compare的試用版（其他類似供應商的產品也可以）
  3. SQL 將本地空白 DB 與目標 DB 進行比較，並運行它為您生成的腳本

再說一次，並不是說 Red Gate 是它的唯一工具。 其他供應商聲稱具有類似的功能，只是我使用的是 Red Gate。 另請注意，如果您嘗試將其嵌入到一些更大的進程或腳本中，他們有一個SDK 。

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