('ts', 'jb')) GROUP BY t.label_name, t.label_id ORDER BY requestWorkOrderNumber DESC LIMIT 10explain的结果:数据量大约400万,查询这个sql需要5s多,label_name、label_id、work_order_id都加过索引,没有效果,应该是count函数导致索引失效了。应该如何优化呢? https://segmentfault.com/q/1010000045417458...
get INS-40719 Error message regarding SCAN Name I do not have DNS server and I'm not going to try to use it on this setup I add this line to /etc/hosts 192.168.244.100 rac-cluster then used "rac-cluster" as the SCAN name and it's still not working with the same error message!
E:\Program Files\PLSQL Developer\instantclient_12_1\oci.dll 6、关闭PL/SQL Developer,重起Developer. 主机名就会出现在PL/SQL Developer的列表里,输入用户名密码,就可以登录远程oracle 11g数据库了。 标签: Oracle 好文要顶 关注我 收藏该文 微信分享 SKYisLimit 粉丝- 17 关注- 8 +加关注 0 0 升...
SET HISTORY LIMIT N allows you to change the default limit, where N is the maximum number. History is retained between SQLcl sessions. By default, the SHOW, HISTORY, CONNECT, and SET commands are not saved in history. SET HISTORY BLACKLIST allows you to set the commands that should no...
19-3 Search with Rule Notes Keyword is Not Working Properly ... 19-3 Database Error Occurs When Deleting an Action or Alert Group in a Policy Override ... 19-4 Exclude IP List Parameter Was Added to the User and Device Velocity Rule Conditions ......
You can use the Export wizard to export some or all database objects of a database connection to a file. The export file will not only contain the SQL data definition language (DDL) statements to create the exported objects, but if you choose to export the data too, the ex...
For byte data, there are three Oracle SQL types: RAW, LONG RAW and BLOB. RAW data is of limited length, is stored directly in a column, and is transmitted to the server in inline packets. LONG RAW data has a much larger limit (2 Gigabytes), is stored via a special mechanism alongsid...
To limit security vulnerabilities, the permissions of the RDA output directory should be set as restrictive as possible. The output directory could contain sensitive configuration information and, when no other mechanism is available, temporary data collection files. ...
When executing scripts in SQL Developer, the amount of output we display on the screen is LIMITED. By design, we only show you 5,000 records from any query, and we limit the amount of output in total for a single script execution to 10,010 rows. This is
error when trying to send a transactional SQL statment over MSDTC "Restricted data type attribute violation" error and SQLS 2017, ODBC Drivers 11 & 13 for SQL Server "SELECT * INTO table FROM" a stored procedure? Possible? "SELECT COUNT(*) FROM (SELECT..." not working "SELECT INTO" ...