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Q: What is alternate index?
Answer:
AIX provides secondary access path. DEFINE AIX over base cluster. Different key. DEFINE PATH to access. BLDINDEX populates. UPGRADE option maintains AIX on base updates. Multiple AIX per cluster.
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Q: What is RECEIVE MAP?
Answer:
EXEC CICS RECEIVE MAP(name) MAPSET(mapset) INTO(symbolic-map). Gets terminal input. Modified fields only (MDT). Check EIBAID for key pressed. MAPFAIL if no data. Symbolic map populated with input.
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Q: Explain HANDLE CONDITION
Answer:
HANDLE CONDITION sets error label. EXEC CICS HANDLE CONDITION NOTFND(para-notfnd). Jumps to label on condition. PUSH/POP HANDLE for nesting. Obsolete - prefer RESP option. Still seen in old code.
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Q: What is MAPONLY?
Answer:
MAPONLY sends map without data. EXEC CICS SEND MAP MAPONLY. Displays initial screen. No symbolic map data. Fast initial display. Use when no data to populate.
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Q: How to use PUSH/POP HANDLE?
Answer:
PUSH HANDLE saves current handlers. POP HANDLE restores. EXEC CICS PUSH HANDLE. Allows nested handler management. Clean up with POP. For modular code.