“超出打开游标的最大数”(ORA-01000: maximum open cursors exceeded)是Oracle数据库中的一个常见错误。这个错误表明当前数据库中打开的游标数量已经达到了系统允许的最大限制。在Oracle中,每个用户会话可以打开的游标数量是有限制的,这个限制由系统参数open_cursors控制。 可能导致该错误的原因 未关闭的游标:在程序中...
1--Oracle 使用 init.ora 中的初始化参数 OPEN_CURSORS 指定一个会话一次最多可以拥有的游标数。缺省值为 50。要获得数据库中 OPEN_CURSORS 参数的值,可以使用以下查询:2SQL> show parameter open_cursors;3NAME TYPEVALUE4--- --- ---5open_cursorsinteger30067修改open_cursors89SQL>altersystemsetopen_curso...
Currently, I have 300 value set as max cursors. Monitoring the user session overpass this number and at then raises the error. I ignore why is not closing the cursors or if I miss some configuration parameter in the configuration. I have test checked to reduce the maximumPoolSize, but seem...
select a.name, b.value from v$statname a, v$mystat b where a.statistic# = b.statistic# and lower(a.name) like '%cursor ca%' / select sum(a.value), b.name,a.sid from v$sesstat a, v$statname b where a.statistic# = b.statistic# and b.name = 'opened cursors current' group b...
select dbms_workload_repository.awr_report_text(l_dbid => dbid, l_inst_num => instance_number, l_bid => mid - 1, l_eid => mid) from (select vd.dbid, vi.instance_number, mid from v$database vd, v$instance vi, (select max(snap_id) mid from dba_hist_snapshot dhs)) /...
' ),( select value hard from v$sysstat where name = 'parse count (hard)' ),( select value sess from v$sysstat where name = 'session cursor cache hits' )/select a.name, b.valuefrom v$statname a, v$mystat bwhere a.statistic# = b.statistic#and lower(a.name) like '...
I get an ORA-1000 error : "Error: ORA-01000: maximum open cursors exceeded" either for select, update and insert queries. Normally the Connexion pool is supposed to avoid this issue ? What is wong in my code ? doCreatePool (); //Create a connexion pool and save it in config.Oracle...
To prevent a session from filling up the library cache, theOPEN_CURSORSdatabase parameter limits this. When reached the max allowed value set forOPEN_CURSORS, theORA-01000: maximum open cursors exceededis triggered in the Oracle side. Solution ...
错误信息:"ORA-01000: maximum open cursors exceeded" 客户端在一次连接中可打开的游标数量是有限的(默认值为 50)。您可以使用 stmt.close() 方法来显式关闭语句,关闭和释放游标, 如果您没有显式关闭游标,您就可能遇到这一错误。您可以通过调高 "OPEN_CURSORS" 参数来避免这一问题,但这种方法治标不治本,只能...
a、如果Open_cursors设置太小,对系统性能不会有明显改善,还可能触发ORA-O1000:m~imum open CUrsOrs exceeded.的错误。 如果设置太大,则无端消耗系统内存。我们可以通过如下的sql语句查看你的设置是否合理: SQL>SELECTMAX(A.VALUE)ASHIGHEST_OPEN_CUR, P.VALUEASMAX_OPEN_CUR ...