CREATE TABLE table_16987 ("Institution" CLOB, "Location" CLOB, "Founded" FLOAT, "Type" CLOB, "Enrollment" FLOAT, "Joined" CLOB, "Nickname" CLOB)

Which institutions joined in 1993
SELECT "Institution" FROM table_16987 WHERE "Joined" = '1993'
SELECT "Institution" FROM "table_16987" WHERE "Joined" = '1993'