Dealing with Case sensitivity in MS Access

Good morning,

I have a series of table which I need to incorporate into a MS Access DB. The unique key in the source tables are from a DB structure where case is also considered so, where my source data defines 12345AB and 12345Ab as unique records, MS access states these are duplicates.

Any suggestions on how to tell MS Access that these are indeed to different records?

MCaliebe

Asked: 2013-01-08

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Microsoft Access

2 Solutions

LVL 120

Rey Obrero (Capricorn1)Commented: 2013-01-08

you can try using the strComp(s1,s2,vbBinarycompare) function

?strcomp("12345AB","12345Ab",vbBinaryCompare)
-1
meaning string1 is less than string2
or

?strcomp("12345Ab","12345AB",vbBinaryCompare)
1
meaning string1 is greater than string2

LVL 77

peter57rCommented: 2013-01-08

There is no way that I know of to store case-sensitive key values- Access is intrinsically case insensitive except where coding is used to specify case-sensitive comparisons..
To store such values I think you would need to introduce a new primary key field and use the existing key values as data.

MCaliebeAuthor Commented: 2013-01-08

Points awarded to both answers as they are both correct. A function can be used to determine differences in a field as related to CASE, however as this item is to be used as a KEY value, MS Access won't function to differentiate based on case.

LVL 93

Patrick MatthewsCommented: 2013-01-08

A function can be used to determine differences in a field as related to CASE, however as this item is to be used as a KEY value, MS Access won't function to differentiate based on case.

Depends on what type of key you mean. If you mean as a primary key, the above is correct.

As a join key, it could work, as cap1 demonstrated:

SELECT *
FROM tbl1, tbl2
WHERE StrComp(tbl1.ID, tb2.ID, 0) = 0

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Dealing with Case sensitivity in MS Access

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