Unified interface for querying data in legacy databases and current databases

A system comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium storing instructions which, when executed by the processor, cause the processor to perform a method comprising:
• receiving from a user a request for data stored in one of a current database or a legacy database;
• translating the request to yield a first translated query, wherein the first translated query conforms to syntactic rules of the current database;
• translating the request to yield a second translated query, wherein the second translated query conforms to syntactic rules of the legacy database;
• executing the first translated query on the current database to retrieve a first data set;
• executing the second translated query on the legacy database to retrieve a second data set;
• and
• providing, in response to the request, a query result based on at least one of the first data set or the second data set.

A non-transitory computer-readable storage medium storing instructions which, when executed by a processor, cause the processor to perform a method comprising:

• receiving a query from a user for data contained in one of a first database or a second database, wherein the query does not directly specify either the first database or the second database, and wherein the first database and the second database are separate and incompatible with each other;
• selecting, based on information requested in the query, one of the first database or the second database as a source database from which to service the query;
• translating the query based on syntactic rules of the source database to yield a translated query;
• executing the translated query on the source database to retrieve a data set;
• and
• presenting to the user a query result based on the data set.