This means that the operation is completed almost instantaneously despite the number of rows in the table, because the existing rows in the table aren't updated during the operation. Instead, the default value is stored only in the metadata of the table and the value is looked up, as ...
JAVA_SOFT_SESSIONSPACE_LIMIT specifies (in bytes) a soft limit on Java memory usage in a session, as a means to warn you if a user's session-duration Java state is using too much memory. When a user's session-duration Java state exceeds this size, Oracle generates a warning that goes...
If ALL is specified with PARTITION = partition_number, all indexes must be aligned. This means that they are partitioned based on equivalent partition functions. Using ALL with PARTITION causes all index partitions with the same partition_number to be rebuilt or reorganized. For more information ...
RESOURCE: This specification means that the database user class RESOURCE is to be assigned to the specified database user. If the database user had previously been assigned the database user class DBA, the right of ownership/authorization for all database users that this user has created is ...
To enable a unique or primary key constraint, you must have the privileges necessary to create an index on the table. You need these privileges because Oracle Database creates an index on the columns of the unique or primary key in the schema containing the table. ...
the table will be placed in the Reorg Pending state. This means that the table is inaccessible for almost all operations until you perform a REORG. See the ALTER TABLE statement in theSQL Referencefor the complete list of ALTER TABLE operations, some of which are also called REORG-recommended...
Adding a row change timestamp column to an existing table means that existing rows might be affected, and that an AREO* state might be set for the table space until a REORG is completed. For each existing row, a timestamp value is assigned for the new row change timestamp column. If ...
1 Applies to SQL Server 2012 (11.x) and later versions, and Azure SQL Database.2 Applies to SQL Server 2017 (14.x) and later versions, and Azure SQL DatabaseIf ALL is specified with PARTITION = <partition_number>, all indexes must be aligned. This means that they're partitioned ...
Database compatibility level is a valuable tool to help with database modernization by allowing the SQL Server Database Engine to be upgraded while keeping the same functional status for connecting applications by maintaining the same pre-upgrade database compatibility level. This means that it's po...
Ifyou are asked to go to a SHUAN SHUOGUO in North China, it means youwill go to a ___ hotpot restaurant. ( ) A. Mongolian style B. Sichuan style C. Cantonese style D. Shandong style 查看完整题目与答案 灰色预测中, GM模型的预测原理是:对某一数据序列用累加的方式生成一组趋势...