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Using IDEA’s Join and Visual Connector features can help you search for matches and correlations between different data sets, but they are often confused with one another.
Join allows you to perform matches on up to eight fields. Visual Connector performs matches on just one field. Each field used to match must be of the same datatype in each database. Never match on virtual fields!
In the event that you have more key fields to match than are allowed, you can create a concatenated key. The basic formula for a concatenated key is: TEXT_1 + TEXT_2 + Text_3, the plus sign used to string character fields together. Any numeric values can be converted to character using the @Str function and any date fields converted using the @DtoC function. Let’s convert the values below to a concatenated key:
@DtoC(INVOICE_DATE,”YYYYMMDD”) +”_” + INVOICE_NO + “_” + @Str(INVOICE_AMT,0,2)
The result will be: 20181024_135288_1196.00
IDEA Join is intended for ONE to ONE or MANY to ONE relationships, the Secondary file limited to 1 record per Key Field(s) used for match. The interactive chart demonstrates what will happen in the case of a many to many relationship. IDEA will always link to the 1st record in the Secondary file and ignore the 2nd record – use Visual Connector for these situations.
If you need assistance using Join, Visual Connector or any other feature in IDEA, contact us at [email protected] or call 888.641.2800 ext. 4 and we will walk you through each step.