CREATE TABLE table_1088 ("Call sign" CLOB, "Launched" CLOB, "Transmitting from" CLOB, "Coverage" CLOB, "Languages" CLOB, "Frequency" CLOB)

How many times does the call sign XEZV appear?
SELECT COUNT("Transmitting from") FROM table_1088 WHERE "Call sign" = 'XEZV'
SELECT COUNT("Transmitting from") FROM "table_1088" WHERE "Call sign" = 'XEZV'