Find out in what all Tables a specified field is available.

You can find out through transaction code SE15.

1) Give SE15 on command prompt.
2) Select ABAP Dictionary
3) Select "fields" folder
4) Click on table fields
5) Then you can enter the desired field name (In your case EKGRP)
6) Run OR press F8.

The system will list out all the tables which contain your desired field name.

or

1) using  transactin Code  SE11( ABAP Dictionary)
2) enter the Data table name where-in the respective field (EKGRP) is used eg; EKKO
3) Click the where -used list button
4) Check out the box(DB tables) Only .

There you can see entire list of tables containing the desired field.

Here  the difficulty is that one should know at least  the name of the one of the data tables which contain the desired field.

With Compliment by: Manohar TS & Kotha

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Find the Table Name For a Field.