Finding locations of tabular data across systems

A computer program product for finding data locations, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by processing means, so as to cause the processing means to:

• scan, given first synopses of first columns of a corpus of first tabular data stored in one or more reference data storage systems, an auxiliary data storage system to identify second tabular data stored in the auxiliary data storage system, the second tabular data including second columns;
• obtain second synopses of the second columns of the second tabular data by computing, for each second column of the second columns, a synopsis according to a numeric representation of contents of cells of said each second column, wherein the synopsis includes a vector of m descriptors, m≥1, each being a measure of said numeric representation;
• and
• compare two sets of one or more descriptors, whereby at least a subset of the descriptors of the second synopses are compared with corresponding descriptors of the first synopses, to identify matches between the second tabular data and the corpus of first tabular data.