ABAP table or structure type

The table type determines whether the physical table specified by the logical table defined in the ABAP/4 dictionary exists. In data
The database also defines the structure of this table.

The SAP system contains the following list types:
1. Transparent table
Each transparent table has a corresponding physical table in the database. Physical table name and logical table in Data Dictionary
The name of the definition is consistent. All transactions and application data are stored in transparent tables.
2. Structure
The structure does not have any data records in the database. Structure is used inProgramOr the interface between the program and the screen.
3. Additional Structure
A subset of the additional structure definition field, which belongs to another table or structure, but is used as a single
Unique object.
4. Storage table
Storage tables can be used to store control data (such as screen sequence, program parameters, or temporary data ). Several Storage
Table store can be combined into a table database. This table library is consistent with a physical table library in the database. It contains groups
All records assigned to the database.
5. Cluster table
Continuous text, such as documents, can be stored in cluster tables. Several cluster tables can be combined into a table cluster. For this
Table type. Several logical rows in different tables are combined into one physical record. This allows an object to be connected to
To store or access tables in a cluster, at least a portion of the keywords MUST match. Several
The cluster Table is stored in a corresponding table in the database.
6. Create a view structure
The structure of the view generated during the activity. This structure is used as an interface in the runtime environment. Normally not displayed in AB
AP/4 dictionary.