Sql Query创建一个新表

Question

Can anyone offered syntax for a sql query that takes an already created table and inserts some of the data into a new table with a new id(primary key)? So far I tried this

SELECT ((ID INT IDENTITY(1,1) PRIMARY KEY), column1, column2, column3)
INTO table_name
FROM table_name 

I keep coming up with a syntax error.

Answer 1

SELECT column1, column2, column3
INTO table_name_new
FROM table_name_old

use like this

Answer 2

INSERT INTO newtable (column1, column2, column3)
SELECT (column1, column2, column3) 
FROM table_name  

Answer 3

INSERT INTO new_table
(Column1, Column2 . . . )

SELECT Column1, Column2 FROM old_table

Don't include the identity column (the primary key with the auto-generated numbers) in the insert list.

Answer 4

只需按下面所示，插入记录时将自动创建一个新的ID

insert into table1 (col1,col2,col3) select col1,col2,col3 from table2;

Answer 5

According to the documentation on MSDN , the IDENTITY property will transfer through with a SELECT INTO clause, but constraints will not. That means you can create a new table with an IDENTITY column if you include the original IDENTITY column from your source table, but the column in the new table won't be a primary key.

The sane way to do this is to use ALTER TABLE after the table is created, as @Kai has suggested.