We all know GlideRecords are used to fetch the database data. There are several methods that we use on a regular basis. Some methods that can help us filter out the results are
1. addActiveQuery() - This method allow us to only select active records. If there's "active" field on the table, we can use this method directly.
2. addNullQuery(field_name) - This method allow us to only select records that have a null value in the field mentioned.
3. addNotNullQuery(field_name) - This method allow us to only select records that do not have a null value in the field mentioned.
But did you ever wonder how grs go about their business of identifying the right records that satisfy the conditions.
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