DROP TABLE IF EXISTS ints; DROP TABLE IF EXISTS floats; DROP TABLE IF EXISTS strings; CREATE TABLE ints ( a TINYINT, b TINYINT(8), c SMALLINT, d SMALLINT(16), e INT, f INT(32), g BIGINT, h BIGINT(64) ) engine=Memory; INSERT INTO ints VALUES (1, 8, 11, 16, 21, 32, 41, 64); SELECT toTypeName(a), toTypeName(b), toTypeName(c), toTypeName(d), toTypeName(e), toTypeName(f), toTypeName(g), toTypeName(h) FROM ints; CREATE TABLE floats ( a FLOAT, b FLOAT(12), c FLOAT(15, 22), d DOUBLE, e DOUBLE(12), f DOUBLE(4, 18) ) engine=Memory; INSERT INTO floats VALUES (1.1, 1.2, 1.3, 41.1, 41.1, 42.1); SELECT toTypeName(a), toTypeName(b), toTypeName(c), toTypeName(d), toTypeName(e), toTypeName(f) FROM floats; CREATE TABLE strings ( a VARCHAR, b VARCHAR(11) ) engine=Memory; INSERT INTO strings VALUES ('test', 'string'); SELECT toTypeName(a), toTypeName(b) FROM strings;