DBIF_RSQL_INVALID_REQUEST — DBIF_RSQL_INVALID_REQUEST short dump

DBIF_RSQL_INVALID_REQUEST is a runtime error raised by the ABAP database interface, not by the underlying database itself. The kernel-level DB interface checks the structure of an Open SQL or Native SQL request before it is ever translated into a database-specific statement and passed to the DBMS. When that check finds the request is not well formed - an invalid selection table, a malformed dynamic WHERE clause, a corrupted host variable, or an inconsistent cursor and fetch sequence - it raises the underlying open SQL exception uncaught, producing this dump. Because the check happens before any SQL reaches the database, the database log usually shows nothing: no deadlock, no native database error, no timeout. The problem lives entirely in the ABAP layer, in the data handed to the SELECT, INSERT, UPDATE or OPEN CURSOR statement, not in the database engine or its resources.

Branch by cause. Malformed range table: correct the code populating the range so SIGN and OPTION only ever take the documented values, and ensure BT and NB always carry both LOW and HIGH; build ranges through the standard range structure or a range-building utility rather than manual field assignment, then transport the correction. Dynamic WHERE string: reconstruct the clause using proper dynamic-SQL syntax handling, validate field references against the DDIC before execution, and check bracket balancing explicitly. Oversized FOR ALL ENTRIES or IN list: split the driver table into packages processed in a loop, each well below the interface's practical limit; this is a coding change requiring a transport and ideally a performance test on realistic data volumes. RFC structure mismatch: align both sides on the same structure version and deploy caller and receiver together, or add a structure-length check before the RFC call rejects unrecognized input cleanly instead of letting it fail deep in the DB layer. Cursor confusion: separate Native SQL and Open SQL cursor handling for the same result set, or refactor the program to use only one mechanism throughout. None of these are resolvable by Basis alone; each is a code change that should go through a change request, unit test, and transport rather than an emergency direct edit.

The reflex is to treat this as an infrastructure blip: retry the job, restart the work process, or ask Basis to check the database for locks, extents, or connectivity. None of that touches the cause, because the request never reached the database - the interface rejected it before any network call was made. The retry fails identically every time the same data triggers it, and in a periodic batch job this produces the same dump on the same step run after run, burning a support cycle before someone finally opens the source code extract in ST22 and reads the actual range table or WHERE string content that was rejected.

Ban manual construction of range or select-option tables in code review; require the standard range structure plus a validation step before it is used in a WHERE field IN itab clause. For dynamic SQL, route WHERE-string assembly through a checked builder rather than trusting free-form string concatenation. Add explicit package-size limits and loop processing wherever FOR ALL ENTRIES or an IN list is built from an unbounded internal table. Where RFC interfaces exchange range tables between systems, version the interface structure and reject calls carrying an unrecognized structure length instead of processing them silently.

This is ABAP development territory, not Basis, since the cause sits in application code or an interface contract rather than in database resources. Basis involvement is limited to confirming no coincidental database-side issue exists. The handover note should include the ST22 dump identifier, the program, include and line, the exact content of the range table or dynamic WHERE string taken from the variable dump, and whether the failing code path is reached locally or via RFC.

Sits alongside DBIF_RSQL_SQL_ERROR, where the request reached the database but was rejected there, and DBIF_RSQL_INVALID_CURSOR, where a cursor handle is used after being closed or before being opened; all three share the same database interface layer. SAPSQL_INVALID_FIELDNAME and SAPSQL_WHERE_ILLEGAL_VALUE cover the ABAP-syntax-level cousins of a bad dynamic WHERE clause. CALL_FUNCTION_CONFLICT_TYPE is worth checking when the invalid request originates from an RFC-transferred range table with a mismatched structure between caller and receiver.