a={1 1 1, 7 7 7}; b={0 0 0, 8 8 8}; c=a//b; For character matrices, the element size of the result matrix is the larger of the element sizes of the two operands.

For complete documentation on library concatenation, see the LIBNAME statement or function in SAS Procedures Guide. For more information on how specific operating environments handle concatenation, ...

Hackers are targeting Windows machines using the ZIP file concatenation technique to deliver malicious payloads in compressed archives without security solutions detecting them. The technique ...