在开发项目当中，程序报错信息如下：
java.lang.RuntimeException: java.sql.SQLException: ORA-04031: 无法分配 4064 字节的共享内存 ("shared pool","INSERT INTO t_pm(PM_CODE, NA...","sga heap(1,0)","kglsim heap") Query: INSERT INTO t_pm(PM_CODE, NAME, ALLPINYIN, PINYIN, JOIN_PM_DATE, CARD_NO, MOBILE_NO, SEX, BIRTH_DATE, FULL_PM_DATE) VALUES ('3607020060015001','袁峰','yuanfeng','yf',to_date('1900-01-01', 'yyyy-MM-dd'),'123456789','13648670794','1',to_date('1973-01-16', 'yyyy-MM-dd'),to_date('1900-01-01', 'yyyy-MM-dd')) Parameters: [] at com.stransfer.dbhelper.DatabaseHelper.update(DatabaseHelper.java:254) at com.stransfer.dbhelper.DatabaseHelper.insertEntityWithDate(DatabaseHelper.java:334) at com.stransfer.main.PmTransfer.importToDb(PmTransfer.java:267) at com.stransfer.main.PmTransfer.migrate(PmTransfer.java:75) at com.stransfer.main.Main.main(Main.java:28)Caused by: java.sql.SQLException: ORA-04031: 无法分配 4064 字节的共享内存 ("shared pool","INSERT INTO t_pm(PM_CODE, NA...","sga heap(1,0)","kglsim heap") Query: INSERT INTO t_pm(PM_CODE, NAME, ALLPINYIN, PINYIN, JOIN_PM_DATE, CARD_NO, MOBILE_NO, SEX, BIRTH_DATE, FULL_PM_DATE) VALUES ('3607020060015001','袁峰','yuanfeng','yf',to_date('1900-01-01', 'yyyy-MM-dd'),'123456789','13648670794','1',to_date('1973-01-16', 'yyyy-MM-dd'),to_date('1900-01-01', 'yyyy-MM-dd')) Parameters: [] at org.apache.commons.dbutils.AbstractQueryRunner.rethrow(AbstractQueryRunner.java:392) at org.apache.commons.dbutils.QueryRunner.update(QueryRunner.java:491) at org.apache.commons.dbutils.QueryRunner.update(QueryRunner.java:377) at com.stransfer.dbhelper.DatabaseHelper.update(DatabaseHelper.java:251) ... 4 more查了相关博客，是由于oracle的shared_pool空间不够的原因，解决方法：
第一种：治标不治本。
alter system flush shared_pool;
这种方法可以立即有效果，但是不是根本的解决办法，一小时左右又开始报上面的错误了，再次执行就可以了。
第二种：治标又治本。
ALTER SYSTEM SET SHARED_POOL_SIZE='100M' SCOPE=spfile；然后重启下：
sql>shutdown immediatesql>startup上面这句话必须在sys用户下或是用dba的身份登录的用户下执行。
share_pool_size(共享池)的作用:
1、sql共享缓冲池
2、该参数是库高速缓存和数据字典的高速缓存。
查看:
SHOW PARAMETERS SHARED_POOL_SIZE更改:
alter system set SHARED_POOL_SIZE='50M' SCOPE=spfile;在我本机运行如下：
SQL> show parameters shared_pool_size;NAME TYPE VALUE------------------------------------ ----------- ------------------------------shared_pool_size big integer 0SQL> alter system set SHARED_POOL_SIZE='50M' SCOPE=both;System altered.SQL> show parameters shared_pool_size;NAME TYPE VALUE------------------------------------ ----------- ------------------------------shared_pool_size big integer 52MSQL> 