DDL Vs DML: The Big Difference Between DDL and DML
If you are planning for using Data Manipulation Language (DML) in your company or organization, you would do well to understand the difference between DDL and DML. Data Manipulation Language (DML) is a language for creating customized RDBMS that allows developers to manage a database. The primary intention behind the creation of DML was to replace the tedious task of creating customized data structures in the mind of a developer with a language that is more object-oriented and easier to use. As far as features are concerned, both languages are quite similar and it all depends on the needs of the organization and its data requirements. In short, DML is the better choice when it comes to performance and versatility. In this blog, you are going to learn DDL Vs DML in more details so that you can make your final decision about their usages. Click on the link and jump to the comparison table.
Now, let’s compare DML and DDL. DML is a relational and object-oriented language and is usually used to describe tables and related entity. On the other hand, DDL is a software abstraction layer on top of Data Manipulation Language (DML). DML syntax is quite similar to VSM and SQL. One thing that DML and DDL share is the ability to define entity keys that can be reused throughout the rest of the DML statement.
DDL Vs DML: Major Differences
There are some major differences between DML and DDL. First of all, DDL is more flexible than DML. For example, it allows the developer to create more complex data definition languages such as data schemas, logical schemas, relationship schemas, user defined roles, and so on. With DML, it is only possible to use generic objects. On the other hand, DML is more flexible when it comes to working with complex database structures.
Another important difference is that DML is more readable than DDL. In case there is any ambiguity in the data that you want to manipulate, DML allows you to store the result into the root table and use a DML command to access the sub-tables or sub-relationships of the root table. On the other hand, DDL does not allow you to do this.
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