RSqlParser is a non-validating sql paser. It can be used to get various components of sql statements.
library(RSqlParser)There are currently 4 methods in the package:
get_all_bind_variables: Get the bind variables in sql.
get_all_select_cols_with_alias: Get the names of the selected columns in the sql
get_all_subqueries: Get the subqueries in sql.
get_all_tables_with_alias: Get the names of the tables with alias present in the sql
This is a non-validating module. It expects syntactically correct sql statements.
Currently, it supports only SELECT statements.
get_all_subqueries does not return nested sub queries. To retreive nested subquery, the subquery of the main select query needs to be passed in this method again.
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