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Check the sequence number assigned to the views.

When you are using subfiles that receive data from different views, and if the guide file fields must be updated, it is important to consider the sequence in which the views are read when you assign them a sequence number.

The system actually generates the read instructions according to the sequence of the view numbers.

 

Example

Assume a subfile *1; it contains file fields for SALES and one file field for PAYMENTS.

 

The SALES file is to be updated by the program.

You entered the read/write characteristics for subfile *1.

You created a view 01 for the PAYMENTS file and a view 02 for the SALES file (update mode).

 

Adelia creates in the INITIALIZATION block:

 

MANAGE_SFL 1

Read SALES guide file

PRESENT PAYMENTS

display PAYMENTS without reading

CHAIN SALES

 

PRESENT SALES

 

UPD_SFL

 

END_MANAGE_SFL

 

 

This will cause a verification error.

You must sequence the views differently: view 02 for the PAYMENTS file and view 01 for the SALES file (update mode).

 

The same type of problem can occur when the view has fields in a subfile format or another layout format.

 

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