Asserts that the number of rows matches the expected value. Attributes:
tableExpression - The name of a table or view or a comma separated list of tables and views to be joined.
whereCondition - A SQL where expression that will limit the number of records returned.
Handles a connection to an arbitrary database. Attributes:
driver -- Fully qualified class name for a JDBC driver on the classpath.
url -- JDBC URL to the database.
user -- User name for database.