ORA 00937 while using INSERT INTO SELECT - sql

Question

When I am running the below insert into select statement, I get ORA 00937 because the below query cannot deal with one of the sub selects on APPLICATIONS table. I don't want to hardcode that value. Any suggestions?
Thanks in advance.
insert into CONFIGURATION_PARAMETER_VALUES
( ID
, NAME
, DESCRIPTION
, DATA_TYPE
, VALUE_STRING
, VALUE_INTEGER
, VALUE_DATE
, VALUE_FLOAT
, VALUE_TIMESTAMP
, APPLICATION_ID
, DELETED
)
select NVL(MAX(ID),0)+1
, 'Alert_Statuses_AllExceptNoStatus'
, 'Suspicious'
, 'String'
, 'RBS_EIM_AL_008'
, null
, null
, null
, null
, (select ID from APPLICATIONS where name = 'Rabobank v 1.0.0.0')
, 'N'
from CONFIGURATION_PARAMETER_VALUES

Answer 1

If it's not too late, I'd suggest implementing a SEQUENCE instead of counting. You may not get strict numeric order (there can be gaps), but you'll get a unique value every time:
CREATE SEQUENCE Config_Parm_Values_Seq START WITH <1 + your current max ID>;
Also note that your INSERT as it stands right now will behave as follows:
If there are no records in the table, it will insert nothing.
If there are records in the table, it will double the number of rows in your table every time you execute it.
So, even if you don't use the sequence, I'd consider a "plain old" INSERT instead of an INSERT ... SELECT. This example uses the sequence:
insert into CONFIGURATION_PARAMETER_VALUES
( ID
, NAME
, DESCRIPTION
, DATA_TYPE
, VALUE_STRING
, VALUE_INTEGER
, VALUE_DATE
, VALUE_FLOAT
, VALUE_TIMESTAMP
, APPLICATION_ID
, DELETED
) VALUES (
Config_Parm_Values_Seq.NEXTVAL -- Use seqname.nextval to get
-- the next value from the sequence
, 'Alert_Statuses_AllExceptNoStatus'
, 'Suspicious'
, 'String'
, 'RBS_EIM_AL_008'
, null
, null
, null
, null
, (select MAX(ID) from APPLICATIONS where name = 'Rabobank v 1.0.0.0')
, 'N')

Answer 2

The problem is in your SELECT statement where you are using SELECT NVL(MAX(ID), 0) + 1.
As you are using MAX function in the SELECT list, you must use a GROUP BY, which is not the solution here.
Use something like the following:
insert into CONFIGURATION_PARAMETER_VALUES
( ID
, NAME
, DESCRIPTION
, DATA_TYPE
, VALUE_STRING
, VALUE_INTEGER
, VALUE_DATE
, VALUE_FLOAT
, VALUE_TIMESTAMP
, APPLICATION_ID
, DELETED
)
select (SELECT MAX(ID) FROM configuration_parameter_values) + 1
-- above line instead of NVL(MAX(ID),0)+1
-- You can also put NVL function around the subquery.
, 'Alert_Statuses_AllExceptNoStatus'
, 'Suspicious'
, 'String'
, 'RBS_EIM_AL_008'
, null
, null
, null
, null
, (select ID from APPLICATIONS where name = 'Rabobank v 1.0.0.0')
-- Warning: The above subquery can generate a TOO_MANY_ROWS exception.
-- Use the solution in the other answer to avoid this.
, 'N'
from CONFIGURATION_PARAMETER_VALUES