Checks whether a table exists. Accounts for surrounding escape characters. Case insensitive.
existsTable(connection, databaseSchema, tableName)A logical value indicating whether the table exits.
The connection to the database server created using either
connect() or DBI::dbConnect().
The name of the database schema. See details for platform-specific details.
The name of the table to check.
The databaseSchema argument is interpreted differently according to the different platforms:
SQL Server and PDW: The databaseSchema schema should specify both the database and the schema, e.g.
'my_database.dbo'. Impala: the databaseSchema should specify the database. Oracle:
The databaseSchema should specify the Oracle 'user'. All other : The databaseSchema should
specify the schema.