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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.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.