ABAP programs have two options for accessing the database interface: Open SQL and Native SQL. Open SQL statements are a fully integrated subset of Standard SQL within ABAP. They enable the ABAP programs to access data irrespective of the database system installed.

The fields of database tables, views, and CDS entities are components of structures in ABAP Dictionary and are identified accordingly as structured types in ABAP programs. Open SQL statements can be used in ABAP programs to access database tables, views, and CDS entities from ABAP Dictionary directly and independently of the platform.

All relational database systems use a variant of Structured Query Language (SQL) to allow you to work with them. Standard SQL consists of three main components: Data Manipulation Language (DML) DML comprises of the statements that you need to work with information in …

If a SAP HANA database is used as a standard AS ABAP database, ABAP programs can use these names across the standard connection. This is only possible in AMDP and Native SQL. Database Shared Libraries (DBSL) are no longer required here. Modification 4. Relational Expression IS INITIAL

ABAP SQL statements use the ABAP SQL interface. This interface transforms all ABAP SQL statements that access the standard database of an AS ABAP to platform-dependent SQL and forwards the results to the database system.

You can create, view, delete, modify or update data, tables, views, etc. in a database using SQL. ANSI (American National Standards Institute) has declared SQL to be a standard language, especially for relational databases. SQL Types in ABAP. SQL has many different types, and in ABAP we use two types of SQL: OpenSQL; Native SQL

Dec 14, 2007 · Native SQL allows you to use database-specific SQL statements in an ABAP program. This means that you can use database tables that are not administered by the ABAP Dictionary, and therefore integrate data that is not part of the R/3 System.

Standard SQL. Structured query language (SQL) is largely standardized language for accessing relational database. It can be divided into three areas; 1) Data Manipulation Language (DML). Statements for reading data and changing data in database tables. 2) Data Definition Language (DDL). Statements for creating and administering database tables ...

Nov 20, 2006 · In the next instalment I will introduce the structured entity relationship model designed by Elmar Sinz in 1990 and discuss some aspects of SAP SERM: hierarchical, aggregated referential and external relations between entities. The third part will deal with special aspects of database design in ABAP like NULL values in databases.

If a SAP HANA database is used as the standard AS ABAP database, it is handled in ABAP programs like any relational database. SQL services provide SQL-level access to ABAP-managed database objects for consumers outside the system.