Hi,
I have an simple access database that I'm using the track inventory items. I have a table with four fields, the first is an auto numbered key field, then I have a "From" location field, a "To" location Field and "Quantity" field that tracks the number of units moved from the "From" location to the "To" location.
I'd like to be able to choose a location and have the database add the quantity delivered to a location and then subtract the quantity taken From that location to give me a total number of items at that location.
I've done this in excel simply have a "From Qty" column and a "To Qty" column. Then I multiply the From column by -1 to make it a negative number and add it to the To column which gives me the total number of items at any given location.
Any help is greatly appreciated.
Microsoft ApplicationsMicrosoft AccessDatabases
Last Comment
Jeffrey Coachman
8/22/2022 - Mon
Boyd (HiTechCoach) Trimmell, Microsoft Access MVP 2010-2015
In a properly normalized relational database there will be two records.
1) a record for the From with a negativequantityy
2) a record for the To with positivevquantityty.
transactiontion tawouldoudl look something like:
Trx_ID - auto number primary key
Trx_LocationID (foreign key to Location table)
Trx_Date
Trx_TrxType - (foreign key to transaction types)
Trx_Quantity
Boyd (HiTechCoach) Trimmell, Microsoft Access MVP 2010-2015
Oops I forgot a field.
Trx_ID - auto number primary key
Trx_LocationID (foreign key to Location table)
Trx_Date
Trx_TrxType - (foreign key to transaction types)
Trx_ItemID - (foreign key to items)
Trx_Quantity
With the above structurer you simple sum the records to for a location and Item get the quantity.
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1) a record for the From with a negativequantityy
2) a record for the To with positivevquantityty.
transactiontion tawouldoudl look something like:
Trx_ID - auto number primary key
Trx_LocationID (foreign key to Location table)
Trx_Date
Trx_TrxType - (foreign key to transaction types)
Trx_Quantity