alter table crfnd.tbl_org_info drop constraint pk_tbl_org_info
ALTER TABLE crfnd.tbl_org_info ADD id numeric(19);
CREATE SEOUENCE crfnd.seq_tbl_org_info;
UPDATE crfnd.tbl_org_info SET id = seq_tbl_org_info.NEXTVAL where 1=1;--where 1=1 条件可省略
ALTER TABLE crfnd.tbl_org_info ADD CONSTRAINT pk_tbl_org_info PRIMARY KEY (id);