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INSTRING( )
Rick Borup
INSTRING() searches for an occurrence of one string in another string. Unlike VFP's "$" function, INSTRING() treats the searched string as a series of substrings whose length is equal to the length of the string being sought. This is useful for validating codes that are greater than one character in length. For example, if "AB" and "CD" are valid values for some field, INSTRING("BC", "ABCD") returns .F. whereas "BC" $ "ABCD" returns .T.   In contrast to INLIST(), INSTRING() requires only a single parameter for the validation string. This allows you to store the validation string in a single table field.
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Il y a 24 années
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instring.zip
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Créé par
Rick Borup
Rick Borup is owner and president of Information Technology Associates, a professional software development, computer services, and information systems consulting firm he founded in 1993. Rick earned BS and MBA degrees from the University of Illinois at Urbana-Champaign and spent several years developing software applications for mainframe computers before turning to microcomputer database development tools in the late 1980’s. He began working with FoxPro in 1991, and has worked full time in Fox...

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Créé le
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