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Microsoft Access

  • 17-01-2012 8:18pm
    #1
    born2bwild
    Closed Accounts Posts: 1,419 ✭✭✭


    1st question - when you're designing a table in design view how can you set the field to force the user to input a specific number of digits? For example, a PPS number has to have seven digits and a letter - nothing else could be a PPS number so how can I set up the field to accept this and only this kind of input?

    2nd question - indices/indexes - why? Just, why?


Comments

  • #2
    aidan_walsh
    Closed Accounts Posts: 17,208 ✭✭✭✭aidan_walsh


    Don't use Access to answer your first query, but
    2nd question - indices/indexes - why? Just, why?
    Speed with large numbers of records.


  • #3
    kincsem
    Closed Accounts Posts: 4,012 ✭✭✭kincsem


    In Field Properties there is a Input Mask property.
    0 ... Digit
    9 ... Digit or space
    # ... Digit or space
    L ... Letter (A-Z, entry required)
    ? ... Letter (A-Z, entry optional)
    a ... Letter (A-Z, entry optional)
    & ... Any character or a space (entry required)
    C ... Any character or a space (entry optional)
    < ... Causes all characters that follow to be converted to lowercase
    > ... Causes all characters that follow to be converted to uppercase

    This is from an old book on Access (1994) so things may have changed. I don't have Access so can't check.

    e.g. "Acct No. "0000
    Data entered 3271
    Data displayed Acct No. 3271


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