we can set using the command:
<b>db2 update db cfg for <db name> using MAXAPPLS <value></b>

Example:
bash-3.00$ db2 update db cfg for DBQA using MAXAPPLS 1
SQL5153N The update cannot be completed because the following relationship
would be violated: “maxappls * maxlocks >= 100”.

bash-3.00$ db2 update db cfg for DBQA using MAXLOCKS 101
SQL5130N The value specified for the configuration parameter “maxlocks” is
not in the valid range of “1” to “100”.

bash-3.00$ db2 update db cfg for DBQA using MAXLOCKS 100
DB20000I The UPDATE DATABASE CONFIGURATION command completed successfully.

bash-3.00$ db2 update db cfg for DBQA using MAXAPPLS 1
DB20000I The UPDATE DATABASE CONFIGURATION command completed successfully.
bash-3.00$

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If on DB2 for z/OS this is controlled in the ZPARMS (in job DSNTIJUZ) , parms in question are MAXDBAT & CONDBAT (I think).

meandyou