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About Block Types

There are two types of blocks, data and control.

All blocks are either single-record or multi-record blocks:

In addition, a data block can also be a master or detail block:

When a block is in Enter-Query-Mode, its formula items are set to null (the formula is not calculated), and if there a formula items in other blocks which refer to items in the Enter-Query-Mode block, then the for purposes of the calculations, the items in the Enter-Query-Mode block are considered to have null values.


Creating a data block from a table

Creating a control block

About creating a master-detail relation

Block datasources