CREATE TABLE table_dev_59 ("id" NUMBER, "gender" CLOB, "st_elevation" NUMBER, "tow_contiguous_limb" BOOLEAN, "body_weight" FLOAT, "renal_disease" BOOLEAN, "estimated_glomerular_filtration_rate_egfr" NUMBER, "two_contiguous_precordial_leads" BOOLEAN, "unprotected_left_main_stenosis" NUMBER, "body_mass_index_bmi" FLOAT, "age" FLOAT, "NOUSE" FLOAT)

unprotected left main stenosis more than 50 % .
SELECT * FROM table_dev_59 WHERE unprotected_left_main_stenosis > 50
SELECT * FROM "table_dev_59" WHERE "unprotected_left_main_stenosis" > 50