Library: Database access (OMDB) legacy library Include: omdb.xin

Return type: Switch Returns: True or false.

Declaration

define external switch function dbRecordExists
  read-only dbField record

Argument definitions

record

is a dbField shelf.

Use dbRecordExists to check whether or not the data cursor is positioned on an existing row.

Requirements

You must include the following line at the beginning of your OmniMark program:

  include "omdb.xin"

Usage Notes

The data cursor points to the record set's currently active row.

The function uses a dbField shelf variable in which a dbQuery function stored the record set earlier.

Example:

         repeat
           exit unless dbRecordExists my-query
  
           repeat over my-query
              output dbFieldValue my-query null '-DNF-'
              output '%t' when ! #last
           again
           output '%n'
  
           dbRecordMove my-query
         again

Other Library Functions    dbClose    dbCommit    dbDatabase    dbExecute    dbField    dbFieldPrepare    dbFieldSink    dbFieldValue    dbIsVersionCompatible    dbLibraryVersion    dbLibraryVersionOCI8    dbLibraryVersionOCI8i    dbLibraryVersionODBC    dbOpenOCI8    dbOpenOCI8i    dbOpenODBC    dbProcedure    dbProcedureClose    dbProcedureExecute    dbProcedureOpen    dbQuery    dbRecordExists    dbRecordMove    dbRecordMoveDynamic    dbRecordSetMove    dbRollback    dbSetTransactionType    dbStatement    dbStatementCompile    dbStatementDiscard    dbStatementExecute    dbStatementStreamingExecute    dbTable    dbTableClose    dbTableDelete    dbTableInsert    dbTableOpen    dbTableUpdate

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