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Internal table declaration DATA: T_MARA TYPE STANDARD TABLE OF TY_MARA, T_MARA1 TYPE SORTED TABLE OF TY_MARA WITH NON-UNIQUE KEY 18 May 2018 You can learn this tutorial about Internal Tables Concept of internal table, Introduction of sorted & hashed table types; Allows key definition 25 Feb 2013 ABAP internal table (ITAB) Performance comparison for different types of tables Standard Sorted Hashed Table using READ. DATA statement is used to declare an internal table. The program must be told where the table begins and ends. So use the BEGIN OF statement and then Fully-specified table types determine how the system will access the entries in the table in key operations. It uses a linear search for standard tables, a binary search for sorted tables, and a search using a hash algorithm for hashed tables. Without OCCURS , you didn't declare a table, so it became a structure. My guess would In your example of SAP DDIC table MARA (General Material Data), we can define it as an internal table like data: it_mara type SORTED table of mara.12 Jun 2014 Here is a simple example on how to use standard tables: types: tt_marc type hashed table of marc with unique key primary_key components 17 Dec 2007 Hi, Please provide some scenario where we have to declare a table as sorted table.Thanks. 18 Jul 2015 However we can declare the sorted table with non unique key also. Here is an example of sorted table by using unique key concept. sap r/3 learning, sap technical, sap basis, sap functional, abap, internal table. The difference between standard tables, sorted table and hashed tables are -