When you create an index on a table that already has data, Oracle must use sort space to create the index. Oracle uses the sort space in memory allocated for the creator of the index (the amount for each user is
Oracle Assets suppliers Oracle Cash Management integration reconciling payments Oracle EDI Gateway EDI inbound invoices EDI outbound payments Payables Open Interface Outbound Advice Oracle General Ledger posting statistical quantity [2] Oracle Inventory integration recording movement statistic...
beforeClose(OracleConnection, Object) - Method in class oracle.jdbc.xa.client.OracleXAHeteroCloseCallback BFILE - Static variable in class oracle.jdbc.OracleTypes BFILE - Class in oracle.sql A class for Oracle specific data type BFILE. BG8MSWIN_CHARSET - Static variable in class oracle.sql...
We can see the query currently uses 2771 consistent gets, which is significantly higher than it could be, as Oracle has to visit the original table block and then follow the pointer to the new location for any migrated row that needs to be retrieved. However, if we look at the cost of...
First,there are the temporarysegments that are used to store partial sort data when the SORT_AREA_SIZE istoo small to process the complete sort set. These segments are built in theuser's default TEMPORARY tablespace. Second, as the index is being rebuilt, it uses a segment which is defined...
specified table. If the statement uses an index range scan, then Oracle scans the index entries in ascending order of their indexed values. In a partitioned index, the results are in ascending order within each partition.Each parameter serves the same purpose as in "INDEX Hint". For example...
--- 延伸阅读:Oracle优化器简述 --- Oracle中的优化器是SQL分析和执行的优化工具,它负责生成、制定SQL的执行计划。 Oracle的优化器有两种: RBO(Rule-Based Optimization) 基于规则的优化器 CBO(Cost-Based Optimization) 基于代价的优化器 RBO: RBO有严格...
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AbstractSessionManager - Class in org.apache.shiro.session.mgtBase abstract class of the SessionManager interface, enabling configuration of an application-wide globalSessionTimeout.AbstractSessionManager() - Constructor for class org.apache.shiro.session.mgt.AbstractSessionManager...
IfField.db_tablespaceisn’t specified (or if the index uses multiple fields), the index is created in tablespace specified in thedb_tablespaceoption inside the model’sclassMeta. If neither of those tablespaces are set, the index is created in the same tablespace as the table. ...