一条插入数据的语句

INSERT INTO BDLLY_2V.MWDMXX (MWDM,MWDMMC,MWFLDM,MWFLMC,MXDMMC,MWZT,MWSM,MWWZ_BH)--,PYM) 
       
    SELECT '01-'||t4.ID||'-'||SUBSTR(t4.mdbh,11,3) AS MWDM,
              SUBSTR(t4.mdbh,11,3)||'号' AS MWDMMC,
              t4.ID AS MWFLDM,
              SUBSTR(t4.mdmc,1,INSTR(t4.mdmc,'排')) AS MWFLMC,
              TRIM(t4.MX) AS MXDMMC,
              ( CASE trim(t4.zt )
                WHEN '待售' THEN 0
                WHEN '立墓' THEN 1
                WHEN '预定' THEN 2
                WHEN '保留' THEN 4
                END) AS MWZT,
              TRIM(t4.MDMC) AS MWSM,
              TRIM(t4.MDBH) AS MWWZ_BH
              --,TRIM(FTGM.GETHZPYCAP(t4.MDMC)) AS PYM   
              
             FROM 
               (
                 SELECT '01-'||t3.ID||'-'||SUBSTR(t3.mdbh,11,3) AS MWDM,t3.* 
                  FROM 
                   (  
                     SELECT t1.*,t2.* 
                      FROM bdlly.LY_MDXX t1,
                       bdlly.ly_md t2 
                        WHERE SUBSTR(t1.mdbh,1,10) = t2.bh  
                   ) t3
               ) t4;