we covered how the moz-sql-parser package can be used to parse an SQL Select statement into a JSONified structure. In this part, we will cover how to extract names of the tables mentioned in the 'from' clause of the query.
In the Using the Mozilla SQL Parser — Part 1 article on Mozilla SQL Parser, we covered how the moz-sql-parser package can be used to parse an SQL Select statement into a JSONified structure. In this part, we will cover how to extract names of the tables mentioned in the '
from' clause of the query.
The SQL we are using is
SELECT s_name from student where s_id in2 (select s_id from student_course where c_id in3 (select c_id from course where c_name = 'DSA'4 and c_name = 'dbms' or c_name = 'algorithm'));
To parse this query, we use
parsed_query = parse(query)
parse is a method provided by the moz_sql_parser.
After parsing, the module generates a JSONified structure, as given below.
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