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Don Burleson Blog 







ORA-00823 Tips

Oracle Database Tips by Donald BurlesonDecember 10, 2015

Question:  I m getting the ORA-00823 message:

SQL> startup
ORA-00823: Specified value of sga_target greater than sga_max_size

How do I recover from this ORA-00923 error?

Answer:  The ORA-008323 often happens when you are trying to disable Oracle Automatic Memory Management. 

To safely fix the ORA-00823 error follow these steps.  You do NOT need to start the database to fix this:

SQL> connect system/manager as sysdba


SQL> create pfile='C:\ora\pfile\init.ora'

File Created.

Now edit the pfile in notepad to make sga_target greater then sga_max_size.

Finally, start the database using the pfile you just edited:

SQL startup pfile='C:\ora\pfile\init.ora';

SQL create spfile from pfile='C:\ora\pfile\init.ora'

This can happen during disabling of AMM in Oracle 11gr2.

See: "SGA Re-Sizes Occurring Despite AMM/ASMM Being Disabled (MEMORY_TARGET/SGA_TARGET=0    MOSC ID 1269139.1

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