A table space is a storage structure containing tables, indexes, large objects, and long data. They are used to organize data in a database into logical storage groupings that relate to where data is stored on a system. Table spaces are stored in databas
Regular table space: SQLM_TABLESPACE_CONTENT_ANY Large table space: SQLM_TABLESPACE_CONTENT_LARGE System temporary data: SQLM_TABLESPACE_CONTENT_SYSTEMP User temporary data: SQLM_TABLESPACE_CONTENT_USRTEMP tablespace_cur_pool_id - Buffer pool currently being used monitor element The buffer pool ...
都知道alter table move 或shrink space可以收缩段,用来消除部分行迁移,消除空间碎片,使数据更紧密,但move 跟shrink space还是有区别的。 Move会移动高水位,但不会释放申请的空间,是在高水位以下(below HWM)的操作。 而shrink space 同样会移动高水位,但也会释放申请的空间,是在高水位上下(below and above HWM)...
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12.3.2 Monitoring Fast Recovery Area Space Usage 12.3.3 Managing Space for Flashback Logs in the Fast Recovery Area 12.3.4 Responding to a Full Fast Recovery Area 12.3.5 Changing the Fast Recovery Area to a New Location 12.3.6 Disabling the Fast Recovery Area 12.3.7 Responding to ...
ERROR 1118 (42000): Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs 在8.0.29 之前中操作,添加列时不会评估行大小限制,如下 8.0.27 中同样 ...
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used_pages) * 8 AS UsedSpaceKB, (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB FROM sys.tables t INNER JOIN sys.indexes i ON t.OBJECT_ID = i.object_id INNER JOIN sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_...
LF_BLKS BR_BLKS USED_SPACE OPT_CMPR_COUNT OPT_CMPR_PCTSAVE 284 3 2037248 2 33 由此显示出,我们的索引目前使用了284个叶子块(即数据所在的块),并使用了3个分支块(Oracle在索引结构中导航所用的块)来找到这些叶子块。使用的空间大约是2MB(2,038,248字节)。另外两列名字有些奇怪,这两列是要告诉我们一些...
These would create an indentation, would not link the number, and cannot be used to create decimal classification numbering like "1.1.". No use of lists for the first level. Here, using an unordered list is possible, but not necessary: the indentation and bullet just add visual clutter and...