写一个sql语句当uf_shdb_dt1表中kcid字段为空时把wlbmwlmckfkz插入到表uf_kcgl和表uf_kcgl_dt1中；当uf_shdb_dt1表中kcid字段有值时只插入表uf_kcgl_dt1条件为mainid = kcid

INSERT INTO uf_kcgl (wlbm, wlmc, kf, kz) SELECT wlbm, wlmc, kf, kz FROM uf_shdb_dt1 WHERE kcid IS NULL;

INSERT INTO uf_kcgl_dt1 (mainid, wlbm, wlmc, kf, kz) SELECT kcid, wlbm, wlmc, kf, kz FROM uf_shdb_dt1 WHERE kcid IS NOT NULL;