Online Classes of SAP ABAP INTERNAL TABLES

INTERNAL TABLES

•Review on Structures

•Describe Internal Tables

•Define Internal Table Types

•Declaring an Internal Table

•Manually Filling an Internal Table

•Use Standard Table Operations

Review on Structures

To declare a table internal table first, we need to define the structure and we can define the type as you can see in the example below, then we declare a variable for an internal table to hold the values.

Internal Table Structure

Data Types in ABAP

The internal table is the subtype of Structured (Multi-column) data type.

Data types in ABAP

Internal Table Types and Keys

in Internal tables, we have 3 types 

• Standard 
• Sorted 
• Hashed

please view the example below to have proper idea

Internal Table types and Keys

Declaring an Internal Table

Standard Table:

in order to define a standard table we need to follow following steps,

1- create a type structure with all the fields you want table to hold

2- declare the table name, table type and row structure.

Standard table

Sorted Table:

The sorted table is similar to standard table the only difference is table type and we need to define a unique key.

Sorted Table

Hashed Table:

Hashed Table