Oracle SQL Developer
Oracle SQL Developer
Oracle SQL Developer
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Create/Edit Table (with advanced options)up to 255 concurrent update transactions for any data block, depending on theavailable space in the block.Free Lists - Lists: Number of free lists for each of the free list groups for the table. Thedefault and minimum value for this parameter is 1, meaning that each free list groupcontains one free list.Free Lists - List Groups: Number of groups of free lists for the table. The default andminimum value for this parameter is 1. <strong>Oracle</strong> uses the instance number of RealApplication Clusters instances to map each instance to one free list group.Buffer Pool: means to use the <strong>Oracle</strong> Database default. KEEP means toput blocks from the segment into the Keep buffer pool; maintaining an appropriatelysized Keep buffer pool lets <strong>Oracle</strong> retain the database object in memory to avoid I/Ooperations. RECYCLE means to put blocks from the segment into the Recycle pool; anappropriately sized Recycle pool reduces the number of objects whose default pool isthe Recycle pool from taking up unnecessary cache space.Logging: means to use the <strong>Oracle</strong> Database default. ON means that thetable creation and any subsequent direct loader (<strong>SQL</strong>*Loader) and direct-path INSERToperations against the table, partition, or LOB storage are logged in the redo log file.OFF means that these operations are not logged in the redo log file.Partitioning tabSpecifies partitioning options for a partitioned table, which is a table that is organizedinto smaller and more manageable pieces called partitions. <strong>SQL</strong> queries and DMLstatements do not need to be modified in order to access partitioned tables; however,after partitions are defined, DDL statements can access and manipulate individualspartitions rather than entire tables or indexes. Also, partitioning is entirely transparentto applications.Partition By: The type of partitioning: RANGE partitions the table on ranges of valuesfrom the column list (which for an index-organized tablet must be a subset of theprimary key columns of the table); HASH partitions the table using the hash method(rows assigned to partitions using a hash function on values found in columnsdesignated as the partitioning key); LIST partitions the table on lists of literal valuesfrom column (useful for controlling how individual rows map to specific partitions).Available: Lists the columns whose values are available to be used in assigning rowsto partitions.Selected: Lists the column whose values are to be used in assigning rows to partitions.To add a column to the partitioning definition, select it in Available Columns and clickthe Add (>) icon; to remove a column from the partitioning definition, select it inSelected Columns and click the Remove (>) or Remove All (