DB4SQLPKG is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "iSeries: SQL Packages" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_DB4SQLPKG TYPE DB4SQLPKG.
The DB4SQLPKG table consists of various fields, each holding specific information or linking keys about iSeries: SQL Packages data available in SAP. These include PKGNAM (iSeries: Package/Program Name (Database Monitor)), STMTNAM (iSeries: Statement Name (Database Monitor)), PKGSIZE (Size (KB) of SQL Packages in a Library), CRTTIME (iSeries: Create Timestamp of an SQL Package)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .