How we can't update join logical files?

10 Answers  

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When we create a pf and did not fill up maint parameter, then by default which access path will the system take & why?

0 Answers  

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I want to change the attribute of field or want to add new field in existing PF but condition is format level identifier should not change, is it possible?

9 Answers   Mind Tree, TCS,

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how can we write LF using flatfile.

9 Answers  

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What is the batch job?

0 Answers  

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what is dynslt and why we use that command when do we use command

2 Answers   Active Brains, UHG,

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what is use of self join and which cases you will use this join

1 Answers   TCS,

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1. How can I create a LF using crtlf command based on a particular member in a multimember PF? Where I have to specify the member name? 2. How to differentiate between the types of join from a Join logical file DDS. Is it possible to have different types of Join Logical files? 3.Any performance difference between Opnqrf and Embedded SQL? When I should prefer Opnqryf and when SQL? 4. I know access path is the path chosen by the program to retrieve data. It can be of keyed access path or arrival sequence. *IMMED- *IMMED description says access path is updated each time record is added or deleted from a member. - What is updating here? *REBLD - The access path is completely rebuilt each time a file member is opened. The access path is maintained until the member is closed, then the access path is deleted. - I am not able to understand this completely. Could anyone explain these more clearly? 5.What is the purpose of using activation group. I know it is a resource allocator, but other than this any other benefits of using an activation group?

2 Answers   IBM,

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Why journalling is compulsory before commitment control?

1 Answers  

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How many maximum record format a logical file have?

0 Answers  

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What is the interactive job?

0 Answers  

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What is the difference between access path and open data path?

0 Answers  

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