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What is PSB,PCB & ACB?
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Answer / rama krishna
PSB : Program Specification Block which is inturn a
collection of one or more PCBs.
PCB : Program Control Block which represents the
application program's view of the database.
ACB : Application Control Block which is the combination of
DBD and PSB. ACBs can be two types
1. Dynamic: Which is used for IMS DB programs as the ACB
constructs at run time by giving respective DBDGEN and
PSBGEN.
2. Static : Which is used for IMS DC programs as the ACB
need to be created before executing the IMS DC program.
| Is This Answer Correct ? | 46 Yes | 4 No |
Answer / sudip ghanvat
pSB:Program specification block.
PCB:program control blocks.
| Is This Answer Correct ? | 37 Yes | 5 No |
Answer / nygrande
PSB - Program Specification Block defines the programs view
of the database and application programs access authority to
database. It defines the logical data structure. A PSB is
made up of one or more PCBs (Program communication blocks).
PCB - Program Communication Block defines which database the
program will access and the type of access allowed. It is
defines the programmer's view of the database.
ACB - Application Control Block is an internal control block
consisting of combined information from the DBD and PSB.
| Is This Answer Correct ? | 23 Yes | 1 No |
Answer / deepak
PSB (Program Specification Block)
describes the database as a particular application program
views it.
| Is This Answer Correct ? | 17 Yes | 4 No |
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