1. A system comprising: one or more database management systems managing a plurality of databases; and one or more computing nodes configured at least to: form a first representation of a first schema for a first database of the plurality of databases, the first representation comprising a first identifier of a column in the first database, a first set of properties corresponding to one or more properties of the column in the first database, and a first information indicative of an order of the column in the first database with respect to other columns in the first database; identify at least a second database of the plurality of databases, the identification based at least in part on information indicative of an increased likelihood of a discrepancy between a second schema of the second database and the first schema of the first database; form a second representation of the second schema for the second database, the second representation comprising a second identifier of a column in the second database, a second set of properties corresponding to one or more properties of the column in the second database, and a second information indicative of an order of the column in the second database with respect to other columns in the second database; identify a discrepancy between the first schema and the second schema, based at least in part on comparing the first identifier to the second identifier, the first set of properties to the second set of properties, and the first information indicative of an order to the second information indicative of an order; and communicate information indicative of the discrepancy.