Abstract: A method for performing a parity check of a table by a software application may include obtaining, from a data lake, data lake records stored in the table during a time interval, obtaining partitioning information used to partition the table in a database during the time interval, extracting, from the data lake records and for the partitioning information, partition identifiers stored in the table during the time interval, generating a partition-specific database query including a partition identifier, executing the partition-specific database query to obtain database records stored in the table in a partition of the database during the time interval, extracting a subset of the data lake records that include the partition identifier, and performing a parity comparison on the subset of the data lake records and the database records to generate a parity result.