修改oracle内存占用
?# su oracle
????$cd $ORACLE_HOME
??? $./sqlplus /nolog
??? >connect / as sysdba;
??? >show parameter sga; (查看内存占用情况)
??? ??NAME?????????????????????????????????? TYPE????????? VALUE
?? ------------------------------------ ----------- -------------
?? lock_sga?????????????????????? boolean?????? FALSE
?? pre_page_sga?????????????????? boolean?????? FALSE
?? sga_max_size?????????????????? big integer 800M
?? sga_max_size?????????????????? big integer 800M
??>alter system set sga_max_size=2048m scope=spfile;
??>alter system set sga_target=1024m scope=spfile;
??然后重启数据库，再show parameter sga就OK了。
?
alter system set memory_target=2048m scope=spfile;
注意：sga_max_size不能大于memory_target，不然数据库启动失败。
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