String Manipulation Functions - Crosswalk to FoxPro/xBase function

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Dear Ones,

Is there any available crosswalk or translation guide or index that would
enable a person to find what SQL functions are available in ACCESS for
manipulating text strings? In particular, it would be helpful to have a list
of ACCESS SQL functions (and their syntax) that correspond to the string (and
number) manipulation functions found in the FoxPro/dBase/Clipper/xBase
programming languages that many of us grew up with. For example, what SQL
function in ACCESS would correspond to the xBase function
AT(<ExpC1>,<ExpC2>) which returns the byte number of the starting position
of text string <ExpC1> within text string <ExpC2>. Another string function
that would be nice to find would be the equivalent of the xBase function
REPLICATE(<ExpC>,<ExpN>) which replicates a character expression N times.
 
Paul Farseth said:
Dear Ones,

Is there any available crosswalk or translation guide or index that
would enable a person to find what SQL functions are available in
ACCESS for manipulating text strings? In particular, it would be
helpful to have a list of ACCESS SQL functions (and their syntax)
that correspond to the string (and number) manipulation functions
found in the FoxPro/dBase/Clipper/xBase programming languages that
many of us grew up with. For example, what SQL function in ACCESS
would correspond to the xBase function AT(<ExpC1>,<ExpC2>) which
returns the byte number of the starting position of text string
<ExpC1> within text string <ExpC2>. Another string function that
would be nice to find would be the equivalent of the xBase function
REPLICATE(<ExpC>,<ExpN>) which replicates a character expression N
times.
Click to expand...

The equivalents are actually VBA functions, which you can call inside
Access queries as well as in code. You can't use them in queries that
are executed from outside of Access.

I don't know if there's a crosswalk, but if you open the help file and
navigate to Programming in Visual Basic -> Visual Basic Language
Reference -> Functions, you can look down the list of functions and find
out the details on each.

I don't know FoxPro very well. For the specific functions you ask
about, I think the equivalent of AT is InStr(). I don't think there's
an exact equivalent to REPLICATE -- there's a function String(), but it
duplicates a single character, not an arbitrary character expression.
You can always write your own VBA function to do that, and use it in
queries within the database wherein it is defined, or which have a
reference to the defining database).
 
Back
Top