Incorrect Syntax Near GO, T-SQL EXEC()

问题

I am using the following script:

DECLARE @dbName NVARCHAR(20) = 'ABC';
EXEC ( N' USE ' + @dbName + '
GO

-- Create Schema
CREATE SCHEMA meta
GO

-- Create Log Table
CREATE TABLE meta.LogAudit(
[EventDate] [datetime] NOT NULL DEFAULT (getdate()),
[EventType] [nvarchar](64) NULL
)
GO
'
);

but it throws me the following error.

Msg 111, Level 15, State 1, Line 5
'CREATE SCHEMA' must be the first statement in a query batch.
Msg 102, Level 15, State 1, Line 22
Incorrect syntax near 'GO'.

Why is that?

--

Edit:
This answer seems to be answering my question: dynamic sql error: 'CREATE TRIGGER' must be the first statement in a query batch

So it seems that in my situation I cannot program it dynamically. My whole code works in the following way:

USE DB
GO

CREATE SCHEMA SCH
GO

CREATE TABLE SCH.TABLE
GO

CREATE TRIGGER TRG
GO

So as SCHEMA and TRIGGER needs to be first query statement, it cannot be written in this way.

回答1:

Try removing comma after [EventType] [nvarchar](64) NULL, and see if the error message changes.

So you have 2 problems:

1. As @Tanner has pointed out, you cannot use GO in dynamic SQL.
2. You still have that trailing comma in the meta.LogAudit table columns definition.

Try running this code:

DECLARE @dbName NVARCHAR(20) = 'ABC';
declare @sql nvarchar(max) = N'exec '+ @DBName + '..sp_executesql N''CREATE SCHEMA meta'''
execute(@sql)
declare @sql2 nvarchar(max) = '
-- Create Log Table
CREATE TABLE '+ @DBName + '.meta.LogAudit(
[EventDate] [datetime] NOT NULL DEFAULT (getdate()),
[EventType] [nvarchar](64) NULL
)'
exec sp_executesql @sql2,N''

It will allow you to programmatically create schema in the specified Database as opposite to using current database.

回答2:

You can use following script for solution to your requirement with the help of unsupported undocumented stored procedure sp_MSForEachDB

EXEC sp_MSForEachDB '
Use [?]; 
IF ''[?]'' = ''[ABC]'' 
begin
    -- Create Schema
    exec sp_executesql N''CREATE SCHEMA meta''
end
'
EXEC sp_MSForEachDB '
Use [?]; 
IF ''[?]'' = ''[ABC]'' 
begin 
    -- Create Log Table
    CREATE TABLE meta.LogAudit(
    [EventDate] [datetime] NOT NULL DEFAULT (getdate()),
    [EventType] [nvarchar](64) NULL,
    )
end'

来源：https://stackoverflow.com/questions/41141762/incorrect-syntax-near-go-t-sql-exec