CREATE TABLE table_test_5 ("id" NUMBER, "systemic_lupus_erythematosus" BOOLEAN, "anemia" BOOLEAN, "gender" CLOB, "pregnancy_or_lactation" BOOLEAN, "serum_potassium" FLOAT, "hemoglobin_a1c_hba1c" FLOAT, "heart_disease" BOOLEAN, "renal_disease" BOOLEAN, "creatinine_clearance_cl" FLOAT, "estimated_glomerular_filtration_rate_egfr" NUMBER, "chronic_inflammatory_disease" BOOLEAN, "global_lvef" NUMBER, "rheumatoid_arthritis" BOOLEAN, "liver_disease" BOOLEAN, "serum_creatinine" FLOAT, "kidney_disease" BOOLEAN, "lung_disease" BOOLEAN, "age" FLOAT, "NOUSE" FLOAT)

hemoglobin level below 9 mg %
SELECT * FROM table_test_5 WHERE hemoglobin_a1c_hba1c < 9
SELECT * FROM "table_test_5" WHERE "hemoglobin_a1c_hba1c" < 9