Oracle:ORA-00955: name is already used by an existing object
2013-04-03 17:27
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下午从生产库导出了一份表结构,用来测试一些问题,由于生产库连接着其他用户下的表所以通过视图在本地模拟一下,于是创建视图:
但是出现ORA-00955: name is already used by an existing object的错误,
上网查了下说是数据库中有了同名对象,于是查询
但是没有任何记录,很是抓狂,找了好久也没有找到解决办法,最后就在表结构文件中搜索
csews 居然搜索到了这样一条语句:
我恍然大悟了,原来创建了同义词。
于是就删除了同义词:
然后重新执行:
视图就成功建立了。
但是仔细一想,select * from all_objects where object_name='csews';
这条语句应该可以查出来呀,因为我另一个用户下也有这个视图但是为什么没有查出来呢,于是有把csews 换成大写试了下即查询:
结果就查询出来了,这时才明白原来要大写。如果早知道就不会浪费那么多时间了,但是谁让咱是菜鸟水平,特此记录一下,
避免自己下次再犯类似错误!
注:经过Oracle的词法分析,本身就会将小写转成大写,直接大写减少了编译过程的时间,所以大写是一个好习惯!
create or replace view csews as select * from order_list;
但是出现ORA-00955: name is already used by an existing object的错误,
上网查了下说是数据库中有了同名对象,于是查询
select * from all_objects where object_name='csews';
但是没有任何记录,很是抓狂,找了好久也没有找到解决办法,最后就在表结构文件中搜索
csews 居然搜索到了这样一条语句:
create or replace synonym CSEWS for P3DBO.CSEWS;
我恍然大悟了,原来创建了同义词。
于是就删除了同义词:
drop public synonym CSEWS;
然后重新执行:
create or replace view csews as select * from order_list;
视图就成功建立了。
但是仔细一想,select * from all_objects where object_name='csews';
这条语句应该可以查出来呀,因为我另一个用户下也有这个视图但是为什么没有查出来呢,于是有把csews 换成大写试了下即查询:
select * from all_objects where object_name='CSEWS';
结果就查询出来了,这时才明白原来要大写。如果早知道就不会浪费那么多时间了,但是谁让咱是菜鸟水平,特此记录一下,
避免自己下次再犯类似错误!
注:经过Oracle的词法分析,本身就会将小写转成大写,直接大写减少了编译过程的时间,所以大写是一个好习惯!
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