摘要： SELECT B.TABLE_NAME AS "表名", C.COMMENTS AS "表说明", B.COLUMN_ID AS "字段序号", B.COLUMN_NAME AS "字段名", B.DATA_TYPE AS "字段数据类型", B.DATA_LENGTH AS "数据长度", B.DATA_PRECISION AS "整数位", B.DATA_SCALE AS "小数位", A.COMMENTS AS "字段说 阅读全文