Question: Which DX 10 Name that has a No Alpha premultiplied and a Description of Explicit alpha?
SQL: SELECT "DX 10 Name" FROM "2-1356994-1" WHERE "Alpha premultiplied?" = 'No' AND "Description" = 'Explicit alpha';

Question: Which Compression ratio has a (none) DX 10 Name and a FOURCC of DXT4?
SQL: SELECT "Compression ratio" FROM "2-1356994-1" WHERE "DX 10 Name" = '(none)' AND "FOURCC" = 'DXT4';

Question: Which Alpha premultiplied has a 4:1 Compression ratio and a DXT3 FOURCC?
SQL: SELECT "Alpha premultiplied?" FROM "2-1356994-1" WHERE "Compression ratio" = '4:1' AND "FOURCC" = 'DXT3';