Hammer Blog

What COMMIT WORK actually does, why it is not a database save, and why hidden commits inside frameworks and BAdIs break transaction control.

SAPUI5 1.146 lets value1 and value2 of a Filter be data binding expressions. The aggregation re-evaluates automatically when the bound value changes.

An object-oriented walkthrough of SAP's BALI application log API: building logs in memory, persisting them with CL_BALI_LOG_DB, and the rollback difference between SAVE_LOG and SAVE_LOG_2ND_DB_CONNECTION.

ABAP Release 8.16 lets READ TABLE take a WHERE condition, collapsing the old LOOP AT ... WHERE. EXIT. ENDLOOP. pattern into a single statement.

Using CL_CDS_TEST_ENVIRONMENT to test logic inside CDS view entities (joins, CASE expressions, aggregations) without depending on real system data.

How CL_OSQL_TEST_ENVIRONMENT lets ABAP Unit tests redirect Open SQL to controlled test data without wrapping every SELECT behind a data access object.

ABAP has no native boolean type. Here is every workaround SAP introduced over the years, why boolc is broken, and what to use today.

An overview of ABAP's Runtime Type Services, covering type inspection with RTTI, dynamic type creation with RTTC, and the class hierarchy behind both.

CL_ABAP_PARALLEL replaces the aRFC pattern for parallel processing in ABAP, with a cleaner API and full ABAP Cloud support.

ABAP 7.57 adds STEP to LOOP AT, letting you iterate every nth row or reverse a table without auxiliary variables.

ABAP 7.58 finally lets you return a value directly from the RETURN statement. A tiny change that fixes a long-standing annoyance.

The ABAP debugger has a scripting interface that lets you automate breakpoints, modify variables, and log values across iterations.

ABAP CE 2602 introduces MERGE, a new top-level keyword that combines INSERT, UPDATE, and DELETE into a single statement.

How ABAP developers use ASSIGN with dynamic program names to access SAP internal data, and why that trick has a shelf life.