How to fix the Oracle error PCB-00578: Variable “string” must be a table?

In this post, you’ll learn more about the Oracle ErrorPCB-00578: Variable “string” must be a table with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PCB-00578: Variable “string” must be a table

Reason for the Error PCB-00578: Variable “string” must be a table

Cause: In an ARRAYLEN statement, the name of a previously declared host table was not specified. The first host variable in an ARRAYLEN statement must be a table. The second host variable, which specifies an array dimension, must be a 4-byte integer. The correct syntax follows: EXEC SQL ARRAYLEN HTABLE (DIM) END-EXEC. The ARRAYLEN statement must appear along with, but somewhere after, the declarations of host_table and dimension.

How to fix the Error PCB-00578: Variable “string” must be a table ?

You can fix this error in Oracle by following the below steps

Action: Check the spelling of both identifiers in the ARRAYLEN statement. If necessary, supply the missing host table name.