获取表字段：select * from user_tab_columns where Table_Name='用户表' order by column_name获取表注释：select * from user_tab_comments where Table_Name='用户表'order by Table_Name获取字段注释：select * from user_col_comments where T..
在oracle里使用自增ID字段的步骤比较繁琐，总结如下：-- 创建表CREATE TABLE ADVICE(ID INT NOT NULL,ACTIVE INT DEFAULT 1 NOT NULL,TYPE INT NOT NULL, MSG VARCHAR2(512) NOT NULL,ADVICE VARCHAR2(4000) NOT NULL,PRIMARY KEY(ID),CONSTRAINT A..
ORA-01438: value larger than specified precision allowed for this column实际值的长度大于了数据库里某个字段允许的最大长度导致的插入失败问题。常见的场景是oracle sequence自动增长，系统用到一定的时候，sequence的值不断的增大，系统开始..
