QBE is a language for querying relational data by graphically representing it.

Db2® for z/OS® Version 13 Release 1 increases maximum column name lengths from 30 bytes to 128 bytes. Db2 for z/OS Version 13 Release 1 increase to 128 byte column name support is limited for those applications that use an SQLDA to obtain column name information. The QMF for TSO and CICS application falls into this category. Due to this Db2 for z/OS limitation, column names longer than 30 bytes are truncated. If a column name longer than 30 bytes is present, the QBE command is blocked from usage.