The below answers are correct
B. The routine must return either an integer or a null.
D. The routine cannot contain argument lists or variable arguments (varargs).
The correct reference is https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/com.ibm.db2.luw.apdv.porting.doc/doc/r_sql_compat_nzplsql_limitations.html
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db2tester
5 years ago