What are the essential differences between Open SQL and native SQL?

1. Personal ignorance: They are only in the way of implementation, the implementation of different efficiency, some books also said native SQL there is a certain risk

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1.Open SQL
is composed of ABAP commands that create database data, in different DBMS (database management System) environments
Its syntax is the same.
OPEN SQL cannot use DDL, DCL, and can only use DML languages similar to select statements. In addition, local buffers can be used and are simpler to use than native SQL.
The ABAP program automatically performs the syntax check feature when it is activated.

2.Native SQL

The Native SQL language can be connected directly to the database using DML, DDL language.

The DDL language can create/modify database tables directly. You can also use the Open SQL command statement (SELECT
, Update,delete, and so on), and cannot be used with opend SQL
The problem solved can be solved by native SQL.

What are the essential differences between Open SQL and native SQL?