Additional tasks to finish editing a report include formatting data, repeating the steps in this procedure for templates with multiple views, and saving reports. 3.3.1 Grouping Items in Columnar Reports In a columnar report, you can group items, apply sorting, and add headers and footers from ...
不做任何事情的session浪费服务器资源,如PGA白白占用,idle time指令从两个方面限制这样的情况,比如某组的max idle time(秒)=1800,表示空闲了30分钟,block another session(秒)=300,表示把别人锁了300秒,这两种情况都会终止该session.⑤限制undo数据的产生某些用户的大型事务可能填满undo表空间,如批处理事务不定期的...
Note: If the client and server cannot agree on authentication, compression, and encryption methods, the negotiation fails and the server does not accept requests from the client. Secure Connections to Another Calendar Server The server negotiates with another calendar server as follows: 1. Server ...
The archive log backup is followed by another control file and SPFILE backup. This happens because autobackup of these important files occurs after any backup, whether it’s a backup of the database or of the archive logs. This is then followed by the maintenance actions. These cross-check t...
create or replace proceduremyproc(v1_p in number, v2_p out number) asbegin v2_p := v1_p * 2;end;/show errors 启动SQL*Plus 并运行该脚本: sqlplus pythonhol/welcome@127.0.0.1/orcl @create_proc exit . 查看$HOME 目录的 plsql_proc.py 文件中包含的以下代码。 import cx_Oracle con = ...
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Call a procedure,PolarDB:You can invoke a procedure from another SPL program by specifying the procedure name and parameters (if any) followed by a semicolon (;) in the following format:
ORA-09766: osnmop: 缓冲区分配失败 ORA-09767: osnmfs: msg_send 的返回代码错误 ORA-13402: NULL 目标 ORA-13403: NULL 源几何结构 ORA-13404: 不是本地源 ORA-13405: NULL 源 ORA-13406: 不受支持的图象处理命令 [] ORA-13407: 不受认可的空间类型限定词 [] ...
create or replace procedure proc_dropifexists( p_table in varchar2 ) is v_count number(10); begin select count(*) into v_count from user_objects where object_name = upper(p_table); if v_count > 0 then execute immediate 'drop table ' || p_table ||' purge'; ...
You can write a trigger directly in PL/SQL or Java, or a trigger can call an existing stored procedure written in either language. Triggers are fired as a result of a SQL statement that affects a row in a particular table. It’s possible for the actions of the trigger to modify the ...