ORACLE10g 自动SGA管理(一)
SGA-- 数据库块缓冲高速缓存 (db_cache_size)-- 共享池 (shared_pool_size)-- Java 池 (java_pool_size)-- 大型池 (large_pool_size)
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自动共享内存管理示例配置SGA_TARGET(控制SGA的总大小) 设置为非零值SGAshared_pool_size = 0large_pool_size = 0java_pool_size = 0db_cache_size = 0
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SQL> select pool, sum(bytes)/1024/1024 Mbytes from v$sgastat group by pool; POOL MBYTES------------ ---------- 303.996315java pool 4shared pool 102.490440large pool 12 DB_CACHE_SIZESQL> select current_size from v$buffer_pool; CURRENT_SIZE------------ 296
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关闭自动大小调整 SGA_TARGET = 0
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