QUERY 3: To check the size of partition table in Oracle. select PARTITION_NAME,sum(bytes)/1024/1024/1024 GB from dba_segments where SEGMENT_NAME=upper('&TABLE_NAME') and PARTITION_NAME='P01' group by PARTITION_NAME; QUERY 4: To check table owner: select owner from dba_segments where s...
Query to check index size in Oracle select sum(bytes)/1024/1024 as "Index Size (MB)" from dba_segments where segment_name='&INDEX_NAME'; select sum(bytes)/1024/1024 as "Index Size (MB)" from user_segments where segment_name='&INDEX_NAME'; Conclusion: After reading this post you wil...
After you create a table, you can insert, query, delete, and update rows using SQL. A row is a collection of column information corresponding to a record in a table. For example, a row in the employees table describes the attributes of a specific employee. See Also: Oracle Database Admi...
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. To create an external tabl...
ActivityRunsQueryResponse ActivityState AddDataFlowToDebugSessionResponse AmazonMWSLinkedService AmazonMWSObjectDataset AmazonMWSSource AmazonRdsForOracleLinkedService AmazonRdsForOraclePartitionSettings AmazonRdsForOracleSource AmazonRdsForOracleTableDataset AmazonRdsForSqlServerLinkedService AmazonRdsForSqlServerSource Ama...
BLOCK_SIZE指定表的微块大小。 COMPRESSION指定存储格式 Flat/Encoding 以及压缩方法,对应如下: nocompress:使用 Flat 格式,不进行压缩。 compress [basic]:使用 Flat 格式和 lz4_1.0 压缩方法。 compress for oltp:使用 Flat 格式和 zstd_1.3.8 压缩方法。
Specifically, it is the clustered index size, in pages, multiplied by the InnoDB page size. Refer to the notes at the end of this section for information regarding other storage engines. MAX_DATA_LENGTH For MyISAM, MAX_DATA_LENGTH is maximum length of the data file. This is the ...
size.The maximum value depends on your operating system. Oracle rounds the calculated size of each new extent to the nearest multiple of the data block size.If you change the value of the PCTINCREASE parameter by specifying it in an ALTER statement, then Oracle calculates the size of the ...
本文为您介绍迁移 Oracle 数据库的数据至 OceanBase 数据库 Oracle 租户时, ALTER TABLE DDL 修改、删除和新增表属性的支持转换范围。 总览 alter_table_properties: { alter_table_properties_1 | { shrink_clause | RENAME TO new_table_name | READ ONLY | READ WRITE | REKEY encryption_spec | DEFAULT CO...
0 IS_HASHED: YES NEWEST_MODIFICATION: 733855581 OLDEST_MODIFICATION: 0 ACCESS_TIME: 3378385672 TABLE_NAME: `employees`.`salaries` INDEX_NAME: PRIMARY NUMBER_RECORDS: 468 DATA_SIZE: 14976 COMPRESSED_SIZE: 0 PAGE_STATE: FILE_PAGE IO_FIX: IO_NONE IS_OLD: YES FREE_PAGE_CLOCK: 66 IS_STALE:...