lazarus鏈接oracle執行sql出錯： illegal variable name/number

下面這句在pl/sql中正常運行：CREATE OR REPLACE TRIGGER MD_1_BI BEFORE INSERT ON MD_1 FOR EACH ROWBEGIN   SELECT GEN_MD_1_ID.NEXTVAL INTO :NEW.ID FROM DUAL;END;但在lazarus開發的程序中執行時出現上面錯誤提示。修改：ZSQLProcessor1.ParamCheck := false;