Avoid Repetitive Values In Several Fields

Nov 21, 2006

I have a table similar to this

table
-----
ID
field1
field2
field3

'ID' is the primary key but I want MS-Access to have an eye on field1-3 to avoid entering the same information into field1-3.

How can I do this?

(Using field1-field3 as primary keys is not desirable)

Please help.

Thanks in advance.

xxyy

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I have a report which has say two columns - staff number and visit date. For a staff number (which is unique) there may be more than one visit date. But I want to list a staff number only once and not multiple times in the column (but want all the visit dates of course). How can I do that?

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Hello! i have created three tables and inserted different records in them. I want only "genes" records from table 1,2 and 3 to be shown. The problem I am having is that when I design the query and ran it, it shows me all the possible combinations of records instead of showing only 1 record.

Table 1 - Number - Population - Genes
Table 2 - Number - Genes
Table 3 - Number - Genes

Table 1 - Records
==============
Number 1 - India - AB48
Number 1 - Pakistan - AB35
Number 1 - South korea - AB48

Table 2 - Records
=============
Number 1 - BD34
Number 1 - GF45

Table 3 - Records
=============
Number 1 - HG65
Number 1 - LK98

SQL
=====
SELECT Table1.Number, Table1.Population, Table1.genes AS Table1_genes, Table2.genes AS Table2_genes, Table3.genes AS Table3_genes
FROM Table3, Table2, Table1;

Now the question is that either I need to use Criteria or Filter to show the each record from the table. The problem I am having is that when I run this query it shows me all the possible combinations of each record from the table.

I want to show only the records which are in those fields and nothing more or less.

Could you please help.

SIZE="1"][Please note: The database I have shown here is an example and does not reflect my personal database however I have made an example to show what i am trying to achieve here][/SIZE]

Many Thanks

Jay

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Sep 24, 2007

I have been working on a Query to sort through a list of companies. I am trying to query the company name to include ALL entries that have the include key(from another table) anywhere in their company name... It is supposed to exclude all entries with ONLY the exclude key(from another table)... If it has the exclude key AND the include key or neither key then the entry should be included... Then it is supposed to use all of the entries added from the previous sorts and include ONLY the entries where the zipcode matches one from a ZIPCode list.

Below I have listed the tables with their variables and my attempt on the query:

Include Table (tblinc)
ID
Inckey

Exclude Table (tblex)
ID
exkey

List Table (list)
ID
Company
Address
City
State
ZIPCode


ZIPCode Table (ZIPCode)
ID
ZIPCode

Query withZips <--- my attempt... doesnt work 100% ALOT OF REPETITIVE ENTRIES

SELECT DISTINCT tblinc.inckey, tblex.exkey, ZIPCode.ZIPCode, *
FROM ((list LEFT JOIN tblinc ON list.company Like "* " & tblinc.inckey & " *") LEFT JOIN tblex ON list.company Like "* " & tblex.exkey & " *") INNER JOIN ZIPCode ON list.ZipCode Like "*" & ZIPCode.ZIPCode & "*"
ORDER BY inckey DESC , exkey;

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Hoping for some assurance and assistance....

I am needing a database that will help to manage employee leave (holiday) requests. I have one but the current design is a bit...... well, you know.

Leave Limits are (presently) applied by one table:-
tblLimit
-------
payWeek
workType (twentysix work types some common to all sites, some apply only to one or two sites)
LimitSiteA (three sites)
LimitSiteB
LimitSiteC
LimitAllSites

So, several "faults" are immediately apparent:

LimitAllSites is ALWAYS the sum of LimitSiteA+LimitSiteB+LimitSiteC so
clearly shouldn't be there, and I don't even want to talk about that....

Also , no primary key, repeating columns... uh-oh!
Therfore....
tblLimit
-------
limitID (PK)
payWeek (date/time - always a Wednesday, our payWeek begins on a Wednesday)
workTypeID (FK to new table tblWorkType)
siteID (FK to new table tblSite)
Limit (integer)


However....with just a brief investigation, it transpires that of the 1600+ rows in this (current version) table, there are only 69 unique sets of limits (ran a Unique Values query, excluding the PayWeek).

So, what I do want to talk about is not having to add in a table row for each WorkType for each PayWeek (for each site- with the improved design). I want to apply a general set of limits, with effectiveFrom and effectiveTo dates, per Site/workType combination, which should automatically populate out 80 weeks into the future (historical records are not required - it is just to help plan future leave) and then cater for the exceptions by "adjusting" the general limits in one of two ways:
1) every day over a date range (e.g. every day between 15NOV05 and 15DEC05, decrease the limit for worktype Z in Site A by 10 percent of the BASE* limit).
2) every nominated weekday over a date range (e.g. every Friday in December 2005, increase the limit for worktype Z in Site A by 20 percent of the BASE limit).

*the two adjustment types need to be independent, overlappable, and have a cumulative effect.

e.g. for the above, if the general limit for type Z of site A were 100
14 NOV --> limit 100 = 100 (no adjustment)
15 NOV --> limit 100-10 = 90 (adjustment per #1)
.
. - repeat concept as above
.
30 NOV --> limit 100-10 = 90 (adjustment per #1)
01 DEC --> limit 100-10 = 90 (adjustment per #1)
02 DEC --> (Friday) --> limit 100-10+20 = 110 (adjustment per #1 & #2)
03 DEC --> limit 100-10 = 90 (adjustment per #1)
.
. - repeat concept as above
.
15 DEC --> limit 100-10 = 90 (adjustment per #1)
16 DEC --> (Friday) --> limit 100+20 = 120 (adjustment per #2)
17 DEC --> limit 100 = 100 (no adjustment)
etc

It gets dirtier !
There are two broad types of leave - general - for which the limit is determined/applied at the (site+workType) level, and "long service" for which the limit is to be applied at just the site level (workType has no bearing).

I was OK up until it got "dirtier" - now I am not so sure....

I was thinking...

tblLimit (base limits)
-------
limitID (PK)
workTypeID (FK to new table tblWorkType)
siteID (FK to new table tblSite)
limit (integer)
effectiveFrom (date/time)
effectiveTo (date/time)


Does my base limit table store WorkTypeID, but as null when the record relates to "long service" leave, and as a valid WorkTypeID when the record relates to "general" leave ? If so, is it of sound design to derive the broad leave type from the "nullness" of the workTypeID, or is it recommended to store that separately?

Similar questions relate to the adjustment table, for both WorkTypeID and WeekdayID...

tblLimitAdjust
-------------
limitAdjustID (PK)
workTypeID (FK)
siteID (FK)
adjustFactor (double)
WeekdayID (FK)
effectiveFrom (date/time)
effectiveTo (date/time)

I was sort of hoping that writing this out may help clarify my mind on some of the points.... which it did, but only to a limited extent so....

Suggestions / corrections / Pointers ???

Regards

John.

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Include Table (tblinc)
ID
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Exclude Table (tblex)
ID
exkey

List Table (list)
ID
Company
Address
City
State
ZIPCode


ZIPCode Table (ZIPCode)
ID
ZIPCode

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FROM ((list LEFT JOIN tblinc ON list.company Like "* " & tblinc.inckey & " *") LEFT JOIN tblex ON list.company Like "* " & tblex.exkey & " *") INNER JOIN ZIPCode ON list.ZipCode Like "*" & ZIPCode.ZIPCode & "*"
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