DSN8a10.emp是未定义的名称

Question

I just created a table named TELE by running the following query:

CREATE TABLE TELE
(NAME2 VARCHAR(15) NOT NULL,
NAME1 VARCHAR(12) NOT NULL,
PHONE CHAR(4));

Now, I am trying to populate it with data from the DSN8A10.EMP table, by running the following query:

INSERT INTO TELE
SELECT LASTNAME, FIRSTNME, PHONENO
FROM DSN8A10.EMP
WHERE WORKDEPT = 'D21';

But I get the following error:

[42704][-204] "DSN8A10.EMP" is an undefined name.. SQLCODE=-204, SQLSTATE=42704, DRIVER=4.23.42.

I am using IntelliJ IDEA with com.ibm.db2.jcc.DB2Driver Data Server Driver.

Can you help me with a solution, please? Thanks in advance!

Answer 1

Some possibilities:

• the table does not exist because you have a typo in the schema name or the table name

• the table does exist but in a different database

• the table exists in the database, but the name or schema has a MiXed case, in which case you must use double quotes around the schema name and table name. So "DSN8a10"."emp" is DIFFERENT from DSN8a10.EMP.

If the Db2-server runs on Linux/Unix/Windows, this query may help to show a mixed case name. It's possible the table is a view or alias or nickname.

select tabschema, tabname from syscat.tables where upper(tabschema)='DSN8A10' and upper(tabname) = 'EMP'

If the Db2-server runs on i-Series: use QSYS2.SYSTABLES instead.

select table_schema, table_name from qsys2.systables where upper(table_schema)='DSN8A10' and table_name='EMP'

If the Db2-server runs on Z/OS: use SYSIBM.SYSTABLES instead:

select creator, name from sysibm.systables where upper(creator)='DSN8A10' and upper(name) = 'EMP'