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Help with vfp and SQL
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De
04/11/1997 16:03:33
John Baird
Coatesville, Pennsylvanie, États-Unis
 
 
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Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Help with vfp and SQL
Divers
Thread ID:
00058224
Message ID:
00058224
Vues:
83
Can anyone tell me why this code is not returning any values from the Connection. If I use the Interactive SQL query program that comes with SQL 6.5, and give it [Select * from students where loginid="john"], the query returns the expected results. If I use the program below, gnConnHandle is a positive integer; however, lnResult is -1 and the query returns nothing. If I try this with lcSQL = "Select * from students" it works just fine. It seems that the where clause is causing the problem. What am I overlooking? Using vfp5.0, sql6.5, nt4.0 STORE SQLCONNECT('MyDataBase', 'sa') TO gnConnHandle IF gnConnHandle <= 0 RETURN ENDIF lcStudentID='john' lcPassword = 'n' lcSessionId='' lcSQL = 'SELECT * FROM students WHERE Loginid="' + lcStudentID +'"' lnResult = SQLEXEC(gnConnHandle, lcSQL, 'cStud') SELE cStud brow IF _TALLY = 0 **-- generate error RETURN "Bad Student ID" ENDIF
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