Oracle 全文检索
使用 like '% %',Oracle会进行全表扫描,相当耗费系统资源,这可以使用oracle的全文检索来提高查询速度。 定期同步优化索引在创建同步与优化存储过程前,要使用sys用户为evan用户赋权:grant execute on ctx_ddl to evan; 不然会报: SQL create or replace
使用 like '% %',,Oracle会进行全表扫描,相当耗费系统资源,这可以使用oracle的全文检索来提高查询速度。
定期同步优化索引 在创建同步与优化存储过程前,要使用sys用户为evan用户赋权:grant execute on ctx_ddl to evan;
不然会报:
SQL> create or replace procedure hsp_sync_index as
2 begin
3 ctx_ddl.sync_index('idx_t_text');
4 end;
5 /
警告: 创建的过程带有编译错误。
SQL> show errors
PROCEDURE HSP_SYNC_INDEX 出现错误:
LINE/COL ERROR
-------- -----------------------------------------------------------------
3/5 PL/SQL: Statement ignored
3/5 PLS-00201: 必须声明标识符 'CTX_DDL'
此外还要格外注意一下禁用词。

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