3446246 - Error in SUM Execution phase MAIN_SWITCH/SQLDB_BAS_TCP : DBSL_CMD_DBCA_PTR_GET failed with 20

While running an upgrade of SAP system using Software Update Manager (SUM) stops in Execution phase MAIN_SWITCH/SQLDB_BAS_TCP.

PHASE_SQLDB.LOG:

4 ETQ276 Executing SQL-script "SQLDBSCRIPT.SQL"
3 ETQ120 20240224152745: PID 15881 execute '~/bin_754/SAPuptool execdb ../var/SQLDBSCRIPT.SQL', output written to '/usr/sap/<SID>/SUM/abap/log/SQLSTMTSTD.OUT'.
3WETQ122 20240224152746: PID 15881 exited with status 20 'SQLDBSCRIPT.SQL' (time:     1.0/    0.6/    0.3/138MB real/usr/sys/maxmem)
1EETQ399 Last error code set is: Process /usr/sap/<SID>/SUM/abap/bin_754/SAPuptool exited with 20, see
1EETQ399X'/usr/sap/<SID>/SUM/abap/log/SQLSTMTSTD.OUT' for details
1EETQ204 Upgrade phase "SQLDB_BAS_TCP" aborted with severe errors

SQLSTMTSTD.OUT:

ENV: LD_LIBRARY_PATH=/usr/sap/<SID>/SUM/abap/bin_754:/usr/sap/<SID>/SYS/exe/run:/usr/sap/<SID>/SYS/exe/uc/linuxx86_64:/oracle/client/19/installpath
ENV: ORACLE_HOME=/oracle/<SID>/19
ENV: PATH=/usr/sap/SUM/abap/bin_754:/oracle/<SID>/19/bin:/home/<SID>adm/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/lib/mit/bin:/usr/sap/<SID>/SYS/exe/uc/linuxx86_64:/usr/sap/<SID>/SYS/exe/run:/home/<SID>adm:.
..
EXECUTING /usr/sap/<SID>/SUM/abap/bin_754/SAPuptool execdb ../var/SQLDBSCRIPT.SQL
Logging to '/usr/sap/SUM/abap/log/SQLDBSCRIPT.OUT'
1EETQ008 Error message: DBSL_CMD_DBCA_PTR_GET failed with 20
1EETQ003 exit code: "20"
SAPup> Process with PID 15881 terminated with status 20 at 20240224152746!

• Software Update Manager (SUM)
• SAP Netweaver AS ABAP
• Oracle DB

SUM, Software Update Manager, Execution phase, execution, Error "DBSL_CMD_DBCA_PTR_GET, update, upgrade, conversion, 20, failed with 20, LD_LIBRARY_PATH, Oracle Client, SQLSTMTSTD.OUT, SQLDB_BAS_TCP, MAIN_SWITCH, SQLDBSCRIPT.SQL, SAPuptool, execdb, /oracle/client/, bin_754, linuxx86_64, exit code: "20", environment variable, env, ORACLE , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem