CREATE TABLE table_38898 ("Date" CLOB, "Label" CLOB, "Region" CLOB, "Format" CLOB, "Catalog" CLOB)

What is the Catalog number of the CD Single?
SELECT "Catalog" FROM table_38898 WHERE "Format" = 'cd single'
SELECT "Catalog" FROM "table_38898" WHERE "Format" = 'cd single'