Block Size

Block Size—Use this list to select the block size, or accept the default. Oracle
Database data is stored in data blocks of the size specified. One data block
corresponds to a specific number of bytes of physical space on disk. Selecting a
block size other than the default 8 kilobytes (KB) value requires advanced
knowledge and should be done only when absolutely required.
While using predefined templates, this list is not enabled because the database will
be created with the default block size of 8 KB. If you chose Custom Database in
the Database Type window, you can change the block size here.
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