Today, I will explain you about how to Remove DataBase In Sql Server Without Using Wizard. This system stored procedure will helps you.
exec sp_dbremove 'dataBaseName'

The following is the entire script of the stored procedure:
USE [TMS] 
GO 
/****** Object:  StoredProcedure [sys].[sp_dbremove]    Script Date: 08-12-2014 22:09:09 ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
ALTER procedure [sys].[sp_dbremove] --- 1996/04/08 00:00 
    @dbname sysname = null, 
    @dropdev varchar(10) = null 
as 
    declare @dbid int 
    declare @devname sysname 
    declare @physname varchar(255) 
 
    if @dbname is null 
    begin 
        raiserror(15131,-1,-1) 
        return(1) 
    end 
 
    if lower(@dropdev) <> 'dropdev' and @dropdev is not null 
    begin 
        raiserror(15131,-1,-1) 
        return(1) 
    end 
 
    -- You must be SA to execute this sproc. 
    if (not (is_srvrolemember('sysadmin') = 1)) 
    begin 
        raiserror(15247,-1,-1) 
        return(1) 
    end 
 
    -- Make sure not trying to remove within a transaction. 
    set implicit_transactions off 
    if @@trancount > 0 
    begin 
        raiserror(15002,-1,-1,'sys.sp_dbremove') 
        return(1) 
    end 
 
    -- Check to see if database exists. 
    select @dbid = dbid from master.dbo.sysdatabases where name=@dbname 
    if @dbid is null 
    begin 
        raiserror(15010,-1,-1,@dbname) 
        return(1) 
    end 
 
    -- Make sure no one is in the db. 
    if (select count(*) from master.dbo.sysprocesses where dbid = @dbid) > 0 
    begin 
        raiserror(15069,-1,-1) 
        return (1) 
    end 
 
    -- Note: database @dbname may not exist anymore 
    -- If invoke gets error, exception will abort this proc. 
    EXEC %%DatabaseRef(Name = @dbname).SetSuspect(Value = 1) 
 
    declare @dropCmd nvarchar(max) 
 
    select @dropCmd = 'drop database ' + quotename(@dbname) 
    exec (@dropCmd) 
    raiserror(15458,-1,-1) 
 
    return(0)   -- sp_dbremove 

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