Oracle 下读取表/字段的备注信息 Oracle 通过COMMENT ON TABLE / COMMENT ON COLUMN 追加表/字段的备注。 CREATE TABLE "MR_DEPT" ( "DEPT_ID" NUMBER NOT NULL , "PARENT_ID" NUMBER, "DEPT_NAME" CHAR(20) NOT NULL , "STATUS" NUMBER DEFAULT 1 NOT NULL , PRIMARY KEY ("DEPT_ID") ); COMMENT ON TABLE "MR_DEPT" IS '部门表'; COMMENT ON COLUMN "MR_DEPT"."DEPT_ID" IS '部门编号'; COMMENT ON COLUMN "MR_DEPT"."PARENT_ID" IS '上级部门编号'; COMMENT ON COLUMN "MR_DEPT"."DEPT_NAME" IS '部门名'; COMMENT ON COLUMN "MR_DEPT"."STATUS" IS '状态'; 备注加好以后,如何在查询中检索呢? 查询表的备注信息 SELECT TABLE_NAME, TABLE_TYPE, COMMENTS FROM USER_TAB_COMMENTS WHERE TABLE_NAME = 'MR_DEPT; 查询字段的备注信息 SELECT TABLE_NAME, COLUMN_NAME, COMMENTS FROM USER_COL_COMMENTS WHERE TABLE_NAME = 'MR_DEPT;
Oracel备注
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转载自418585708.iteye.com/blog/2154811
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