To answer this question, we need to understand the concept of tablespace in database management systems.
In a database, a tablespace is a logical storage unit that contains tables, indexes, and other database objects. When a table is dropped, the space it occupied in the tablespace becomes available for reuse.
Now, let's go through each option to understand why it is correct or incorrect:
Option A) Simple Tablespace - This option is incorrect. A simple tablespace is a type of tablespace that does not support advanced features like partitioning or segmenting. Therefore, it does not provide efficient space reclamation after a table is dropped.
Option B) Partitioned Tablespace - This option is incorrect. A partitioned tablespace is a type of tablespace that allows tables to be divided into smaller logical units called partitions. While partitioning can improve performance and manageability, it does not necessarily provide efficient space reclamation after a table is dropped.
Option C) Complex Tablespace - This option is incorrect. There is no specific type of tablespace called "complex tablespace." It is not a recognized term in database management systems.
Option D) Segmented Tablespace - This option is correct. A segmented tablespace is a type of tablespace that divides the space into segments, which are logical storage units. When a table is dropped in a segmented tablespace, the space occupied by the table can be easily reclaimed with minimum reorganization or reallocation of space.
Therefore, the correct answer is D) Segmented Tablespace. This option is correct because a segmented tablespace allows for efficient space reclamation after a table is dropped.