Using the Mozilla SQL Parser

Using the Mozilla SQL Parser

Using the Mozilla SQL Parser. In this article, see part three of how to use the Mozilla SQL parser.

In addition to the 'select' and 'from' keys created by the moz_sql_parser, it creates the 'where' key for the where clause. By traversing the where clause, we will be able to identify the tables used in it.

It should be noted that a where clause can have additional nesting. Hence, we need to have a recursive mechanism to traverse through all the depths and collect the table references. It is important to note that the where clause also contains a from clause. So we need to include that functionality as well. Oh yes! The where clause can also contain a select clause.

The method to identify the tables mentioned in the where clause is given below.

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