CHECKBOX in ALV (T134 table data fetching)

T134 is a standard SAP Table which is used to store Material Types data and is available within R/3 SAP systems depending on the version and release level
Table T134 technical data
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Table : T134
Data storage: Material Types
Module: LO
Component: LO-MD
SAP Package: MG
Delivery Class: G – Customer table, SAP may insert new data records but may not overwrite or delete existing ones
Table Category: TRANSPARENT