This question already has answers here:
How do I 'subtract' sql tables?
(14 answers)
Closed 4 years ago.
I have this select statement that I am running in SQL Server. But it's throwing an error:
select count(*)
from
(select zip from A
minus
select zip from B)
Error:
Incorrect syntax near select
What is the issue here? I have also tried aliasing the subquery but same error happens.
There is nothing called minus in SQL Server, you need to use except.
Note, except in SQL Server is equivalent to minus of Oracle
Following query will work.
select count(*) ct
from
(
select zip from A
except
select zip from B
)t
Another issue with your code is that you need to give a alias name to the inner table you are creating.
Related
I'm new to Microsoft SQL Server 2014. I run this SQL code:
SELECT TOP(10) 'DBSG' as seek_entity, *
FROM DBSG..PM00200
and get this result:
Next, I want to find out total line items for that entity with code below.
WITH vw_pm00200_all AS
(
SELECT TOP(10)
'DBSG' as seek_entity, *
FROM
DBSG..PM00200
)
SELECT
seek_entity,
COUNT(*) AS total
FROM
vw_pm00200_all
GROUP BY
1
Sadly, I get this error. I have no idea why it failed.
Msg 164, Level 15, State 1, Line 9
Each GROUP BY expression must contain at least one column that is not an outer reference.
Lastly, please advise is Microsoft SQL Server based on Transact-SQL?
It looks like you are running into this problem here: Each GROUP BY expression must contain at least one column that is not an outer reference
As the answer points out, grouping by a constant literal is pointless as it is the same for all results. Count(*) will return the same result as Count(*) with a GROUP BY.
If this is just test code and you plan on using a CASE statement (with different values) in place of the string literal, you may have better luck.
Yes, T-SQL is Microsoft SQL Server's flavor of SQL.
This question already has an answer here:
Convert a Recursive CTE in SQL Server to netezza
(1 answer)
Closed 6 years ago.
I am trying to run a CTE in script form
e.g
with CTE as
(select * from sometable);
on running this code part alone in the I am getting the error
^ found "" (at char 152) expecting SELECT' or'('' */
Please let me know how to run this query. thanks
You are getting this error because you aren't doing anything with the CTE you have defined, but the syntax requires something.
Add a SELECT after the CTE clause in the parentheses and it should work fine.
with CTE as
(select * from sometable)
select * from CTE;
This question already has answers here:
How do I get list of all tables in a database using TSQL?
(20 answers)
Closed 6 years ago.
I am using SQL Server 2014 and want to get all the tables name in a particular database STUDENT through a SQL query.
How is it possible?
Thanks
You want to query sys.objects and look for everything with the type description 'USER_TABLE'. You could use a query like this;
SELECT
*
FROM STUDENT.sys.objects
WHERE type_desc = 'USER_TABLE'
The FROM clause has the usual format: DatabaseName.SchemaName.TableName.
Or as marc_s mentions, you can use sys.tables instead;
SELECT
*
FROM STUDENT.sys.tables
This question already has answers here:
How to create a table from select query result in SQL Server 2008 [duplicate]
(6 answers)
Closed 7 years ago.
I am trying to create a new table in Microsoft SQL Server Management Studio based on two existing tables.
When I execute the query below, I get an error saying that there is an:
Incorrect syntax near the keyword 'SELECT'.
SQL code:
CREATE TABLE NEW_TABLE AS
SELECT OLD_TABLE.A
, OLD_TABLE.B
, OTHER_OLD_TABLE.C
FROM OLD_TABLE
INNER JOIN OTHER_OLD_TABLE
ON OLD_TABLE.A = OTHER_OLD_TABLE.D;
I looked at various other problems, but could not find a solution to mine. Do you have any idea what could be wrong with the syntax?
Alternatively, you can use SELECT * INTO new_table statement just like this.
SELECT OLD_TABLE.A
, OLD_TABLE.B
, OTHER_OLD_TABLE.C INTO NEW_TABLE
FROM OLD_TABLE
INNER JOIN OTHER_OLD_TABLE
ON OLD_TABLE.A = OTHER_OLD_TABLE.D;
this statement will also create a new table as you required.
This question already has answers here:
sql server 2008 management studio not checking the syntax of my query
(2 answers)
Closed 8 years ago.
As you see from these images, the ROSHEADERID column is invalid and when I execute the first one it returns a meaningful message. But when I use this query in where clause as a subquery. It executes and deletes all of the records without warning or aborting the operation.
How can this be ?
The subquery has access to columns in outer query, thus column ROSHEADERID you ask for is effectively taken from EXM_REVIEWOFSYSTEMS (not from EXM_REVIEWOFSYSTEMSHEADER), thus deleting all records in outer table.
This should clarify a bit on what's going on behind the scenes:
http://sqlfiddle.com/#!2/623c7/3
More information here: http://technet.microsoft.com/en-us/library/ms187638(v=sql.105).aspx
Use Alias Names for tables to avoid conflict:
BEGIN TRAN
DELETE FROM EXM_REVIEWOFSYSTEMS
WHERE ROSHEADERID IN ( SELECT rsh.ROSHEADERID
FROM EXM_REVIEWOFSYSTEMSHEADER rsh
WHERE rsh.PATIENTID = '' )
ROLLBACK TRAN