Query to Delete all tables function and stored procedure In a 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

SQL SERVER - Insert from one table to another Table

In SQL Database, You can probably insert data from one table into another using two methods.
1. Insert Into - This is used when the table to which the data is going to be inserted is already present.
2. Select Into -  This is used when the table to which the data is going to be inserted is not present and is to be created on the go when inserting the data.  

Syntax for Insert Into

INSERT INTO NewEmployeeTable (EmpId)

SELECT EmpId

FROM OldEmployeeTable 

In the above syntax the table NewEmployeeTable is already there and we are inserting EmpId from the OldEmployeeTable into the exisiting NewEmployeeTable.

Syntax for Select Into

SELECT * INTO  NewTableName FROM ExistingTableName

In the above syntax it creates the new table and inserts the data from the existing old table.Thus the insert form one table to another table is done in Sql Server using Tsql. 
Check this post to read how to Insert into Table from Stored Procedure.