DB2 UDB V7 (Inserting into Identity Columns)
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Question:
I am working with DB2 UDB v7 and need to insert into a table
with an identity column.
Example:
SourceTable:
Student CourseGrade
------- -----------
Fred A
Wilma B
TargetTable Desired result:
(SurrogateKey is defined as
Int Generated Always As Identity
(Start with 1, Increment by 1, No Cache)
SurrogateKey Student CourseGrade
------------ ------- -----------
1
Fred
A
2
Wilma
B
I want to write a statement like:
Insert into TargetTable
Select
Student,
CourseGrade
From SourceTable
This produces an error "The number of values assigned is not the same as
the number of specified or
implied columns"
Is there a way to specify that the first column is inserted into an identity
column?
Accepted Answer:
To create records using the identity column you should
specify only the fields that need populating.
insert into targettable (student,coursegrade) select student,coursegrade from
sourcetable;
or
insert into targettable (student,coursegrade) select * from sourcetable;
If updating with values use
insert into targettable (student,coursegrade) values ('Fred','A');
Written on 2/06/2001