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String comparaison
Message
From
22/06/2022 06:11:36
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Germany
 
General information
Forum:
Visual FoxPro
Category:
Troubleshooting
Miscellaneous
Thread ID:
01684533
Message ID:
01684536
Views:
48
Hi Martina,

SET COLLATE should do nothing an a simple comparison?
I see no INDEX ON.
So you say this is some internal SQL indexing behaving oddly?

I have SET COLLATE TO "MACHINE" as default, sure, but never thought about this.

Lutz

>Hi,
>
>Add next row to your code:
>
>SET COLLATE TO "MACHINE"
>
>
>For other collates can be "GALA"= "Gala"
>
>MartinaJ
>
>>*Cursor with unique list of string
>>CREATE CURSOR c_UniqueString (cStr C(50))
>>
>>*Cursor where we want to find all unique string from.
>>CREATE CURSOR c_Data (cCode C(40), cdesc C(50))
>>
>>INSERT INTO c_data (ccode, cDesc) VALUES ("ARIA", "Ariane")
>>INSERT INTO c_data (ccode, cDesc) VALUES ("GALA", "Gala")
>>
>>SET EXACT ON
>>SET ANSI ON
>>
>>*First column
>>SELECT DISTINCT CAST(RTRIM(cCode) AS V(40)) as string FROM c_data WHERE !ISNULL(cCode) INTO CURSOR c_DistinctCode
>>
>>INSERT INTO c_UniqueString (cStr) SELECT string FROM c_DistinctCode WHERE string NOT IN (SELECT cStr FROM c_UniqueString)
>>
>>*Second column
>>SELECT DISTINCT CAST(RTRIM(cdesc) AS V(40)) as string FROM c_data WHERE !ISNULL(cdesc) INTO CURSOR c_DistinctDesc
>>
>>INSERT INTO c_UniqueString (cStr) SELECT string FROM c_DistinctDesc WHERE string NOT IN (SELECT cStr FROM c_UniqueString)
>>
>>*We should have 4 values in c_UniqueString, but we are missing Gala in lower case. The NOT IN does not take into account Lowercase and UpperCase.
>>
>>Any work around ?
Words are given to man to enable him to conceal his true feelings.
Charles Maurice de Talleyrand-Périgord

Weeks of programming can save you hours of planning.

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