Creating a column as NOT NULL with "select into"

I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.Try:
create table t
(
ID int identity primary key
, x char (2) null
)
insert t (x) values ('XX')
insert t (x) values ('YY')
go
select
ID
, isnull (x, '--') as y
into
x
from
t
exec sp_help x
go
drop table t, x
Tom
---
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.|||TJ,
A general recommendation is to create the table using DDL.
CREATE TABLE NewTable
(col1 int,
col2 varchar(100)0
go
INSERT INTO NewTable SELECT col1, COALESCE(col2, '') FROM OldTable
go
SELECT INTO is best used for the temporary quick and dirty operation, not
for when you want something to stick around.
Russell Fields
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:##97VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>|||That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> ---
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>|||Your welcomes. ;-)
--
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
.
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23pCzI8iWEHA.2852@.TK2MSFTNGP12.phx.gbl...
That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> ---
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>

Creating a column as NOT NULL with "select into"

I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.Try:
create table t
(
ID int identity primary key
, x char (2) null
)
insert t (x) values ('XX')
insert t (x) values ('YY')
go
select
ID
, isnull (x, '--') as y
into
x
from
t
exec sp_help x
go
drop table t, x
Tom
---
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.|||TJ,
A general recommendation is to create the table using DDL.
CREATE TABLE NewTable
(col1 int,
col2 varchar(100)0
go
INSERT INTO NewTable SELECT col1, COALESCE(col2, '') FROM OldTable
go
SELECT INTO is best used for the temporary quick and dirty operation, not
for when you want something to stick around.
Russell Fields
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:##97VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>|||That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> ---
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>|||Your welcomes. ;-)
Tom
----
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
.
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23pCzI8iWEHA.2852@.TK2MSFTNGP12.phx.gbl...
That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> ---
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>

Creating a column as NOT NULL with "select into"

I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.
Try:
create table t
(
ID int identity primary key
, x char (2) null
)
insert t (x) values ('XX')
insert t (x) values ('YY')
go
select
ID
, isnull (x, '--') as y
into
x
from
t
exec sp_help x
go
drop table t, x
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
I am using a select into to create a new table and populate with data.
Select a.col1, a.col2 into NewTable From OldTable
Col2 is defined as NULLible but has no NULL values. The NewTable that is
created has Col2 as NULLible but I would like it to be NOT NULL.
Is there any way to get this Select into statement to create the column as
NOT NULL. I know that I could always alter the table later to change the
NULLibility but if this table has many million rows this Alter would take
some time.
Thanks in advance.
|||TJ,
A general recommendation is to create the table using DDL.
CREATE TABLE NewTable
(col1 int,
col2 varchar(100)0
go
INSERT INTO NewTable SELECT col1, COALESCE(col2, '') FROM OldTable
go
SELECT INTO is best used for the temporary quick and dirty operation, not
for when you want something to stick around.
Russell Fields
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:##97VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>
|||That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>
|||Your welcomes. ;-)
Tom
Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
SQL Server MVP
Columnist, SQL Server Professional
Toronto, ON Canada
www.pinnaclepublishing.com/sql
..
"TJTODD" <tjtodd@.anonymous.com> wrote in message
news:%23pCzI8iWEHA.2852@.TK2MSFTNGP12.phx.gbl...
That is an awesome idea. Thanks You !
"Tom Moreau" <tom@.dont.spam.me.cips.ca> wrote in message
news:et7Q7HiWEHA.3800@.TK2MSFTNGP11.phx.gbl...
> Try:
> create table t
> (
> ID int identity primary key
> , x char (2) null
> )
> insert t (x) values ('XX')
> insert t (x) values ('YY')
> go
> select
> ID
> , isnull (x, '--') as y
> into
> x
> from
> t
> exec sp_help x
> go
> drop table t, x
>
> --
> Tom
> Thomas A. Moreau, BSc, PhD, MCSE, MCDBA
> SQL Server MVP
> Columnist, SQL Server Professional
> Toronto, ON Canada
> www.pinnaclepublishing.com/sql
>
> "TJTODD" <tjtodd@.anonymous.com> wrote in message
> news:%23%2397VDiWEHA.1368@.TK2MSFTNGP10.phx.gbl...
> I am using a select into to create a new table and populate with data.
> Select a.col1, a.col2 into NewTable From OldTable
> Col2 is defined as NULLible but has no NULL values. The NewTable that is
> created has Col2 as NULLible but I would like it to be NOT NULL.
> Is there any way to get this Select into statement to create the column as
> NOT NULL. I know that I could always alter the table later to change the
> NULLibility but if this table has many million rows this Alter would take
> some time.
> Thanks in advance.
>

Creating a check constraint on a renamed column

Hi

I am having a check constraint on a table column Col1.
Now i am renaming the table column from Col1 to Col2. I dropped the check constraint before renaming the column . Then I renamed the column and then i am recreating the check constraint on Col2. I have written all these commands in a single script. Now when i am trying to run this script it gives me error saying
"Invalid column name 'Col2'"
How can i resolve this issue since i need to run these commands in a single file only.

Commands:-

CREATE TABLE TRY(
ID INTEGER,
COL1 TINYINT,
CONSTRAINT CHK_COL CHECK (COL1 IN(1,2))
)

ALTER TABLE TRY DROP CONSTRAINT CHK_COL
EXEC SP_RENAME 'TRY.COL1', 'COL2'
ALTER TABLE TRY ADD CONSTRAINT CHK_COL CHECK(COL2 IN (1,2))

SQL Server utilities interpret GO as a signal that they should send the current batch of Transact-SQL statements to SQL Server.

use the following script...

Code Snippet

CREATE TABLE TRY(

ID INTEGER,

COL1 TINYINT,

CONSTRAINT CHK_COL CHECK (COL1 IN(1,2))

)

Go

ALTER TABLE TRY DROP CONSTRAINT CHK_COL

Go

EXEC SP_RENAME 'TRY.COL1', 'COL2'

Go

ALTER TABLE TRY ADD CONSTRAINT CHK_COL CHECK(COL2 IN (1,2))

|||

As Mani indicated, SQL Server operates on a 'batch' of statements at a time. Without a GO between your two statements, the first statement has not completed, and the second statement is attempting to change a table that doesn't yet exists.

Adding the GO between the statements is required after CREATE object type operations if you wish to then work with those objects.

|||ok
now i need to give the above code in a BEGIN END block
can i execute a BEGIN END block within a BEGIN END block with a GO statement
|||

No.. You should not allowed to enclose GO with in BEGIN .. END.

It is logically incorrect.

Why you need to have in BEGIN .. END?