Oracle数据库查看已添加的索引和创建索引

/*
*
*查看目标表中已添加的索引
*
*/
--在数据库中查找表名
select * from user_tables where  table_name like 'tablename%';
 
--查看该表的所有索引
select * from all_indexes where table_name = 'tablename';
 
--查看该表的所有索引列
select* from all_ind_columns where table_name = 'tablename';
 
/*
*创建索引
*
*/
create index idx01 tablename(column);

SELECT
	a.uniqueness 索引类型,
	b.index_name 索引名称,
	b.column_name 字段 
FROM
	user_indexes a,
	user_ind_columns b 
WHERE
	a.table_name = b.table_name 
	AND a.index_name = b.index_name 
	AND a.table_owner = upper( 'ZYFZ' ) 
	AND a.table_name = 'DOP_ETL_OP_ZCGZXX_TGH' 
ORDER BY
	a.uniqueness DESC;