What is open data path?
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what is the purpus of the chain and setll and setgt ?
Why we create the Physical File Member?
what is the difference between adding keys & constraints into a phisical file
When u create a PF and did not fill up Maint parameter, then by default which access path will the system take & why
can we concate fileds in physical file? If yes how can we do?
How can we know that a trigger has been added on a PF? and what is the purpose of adding a trigger?
I have a pf, it contains 5 members, how to access particular member data from logical file?
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?
How to find the list of source physical files in a library?
what is multiple member pf
How to know the particular record in pf with out reading?
how to see number of logical files depending on a pf?...can we declare more than 20 logical files from a single pf? is it possible