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By Jagat Koding
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SQL Query Categories in MySQL DBMS
📌 SQL queries are syntaxes used to access and display data in a database system, allowing for data organization and interaction.
⚙️ SQL queries are generally categorized into three main types used in MySQL DBMS: DDL (Data Definition Language), DML (Data Manipulation Language), and DCL (Data Control Language).
🛠️ DDL is used for defining and managing database objects like databases and tables, while DML handles data manipulation within those objects.
Data Definition Language (DDL)
🧱 DDL commands are used to define database objects, such as creating or deleting databases and tables, and managing indexes.
➕ Key DDL commands include CREATE (to build databases or tables), ALTER (to modify existing table structures, like adding or renaming fields), and DROP (to permanently delete databases or tables).
🏛️ DDL functions as the method for defining the "containers" (database or table structure) within the DBMS.
Data Manipulation Language (DML)
💾 DML queries are essential after defining the structure (using DDL) to manage the data values stored inside the tables.
🔎 Key DML commands include SELECT (to display data values), INSERT (to add new data values), UPDATE (to modify existing data values), and DELETE (to remove specific data values).
Data Control Language (DCL)
🛡️ DCL methods are utilized for controlling access authorization, auditing database usage, and managing space allocation.
🔑 Key DCL commands are GRANT (to authorize user access to tables) and REVOKE (to cancel previously given user access permissions).
💾 DCL also includes COMMIT (to finalize database saves) and ROLLBACK (to cancel database saves).
Key Points & Insights
➡️ Understanding the three core SQL query types (DDL, DML, DCL) is fundamental for operating a MySQL database system.
➡️ DDL focuses on structure creation and modification (e.g., CREATE, ALTER, DROP), while DML focuses on data interaction (e.g., SELECT, INSERT, UPDATE, DELETE).
➡️ DCL manages security and transaction control (e.g., GRANT, REVOKE, COMMIT, ROLLBACK).
📸 Video summarized with SummaryTube.com on Nov 25, 2025, 01:59 UTC
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Full video URL: youtube.com/watch?v=1nZB6cSOVD4
Duration: 5:01
Get instant insights and key takeaways from this YouTube video by Jagat Koding.
SQL Query Categories in MySQL DBMS
📌 SQL queries are syntaxes used to access and display data in a database system, allowing for data organization and interaction.
⚙️ SQL queries are generally categorized into three main types used in MySQL DBMS: DDL (Data Definition Language), DML (Data Manipulation Language), and DCL (Data Control Language).
🛠️ DDL is used for defining and managing database objects like databases and tables, while DML handles data manipulation within those objects.
Data Definition Language (DDL)
🧱 DDL commands are used to define database objects, such as creating or deleting databases and tables, and managing indexes.
➕ Key DDL commands include CREATE (to build databases or tables), ALTER (to modify existing table structures, like adding or renaming fields), and DROP (to permanently delete databases or tables).
🏛️ DDL functions as the method for defining the "containers" (database or table structure) within the DBMS.
Data Manipulation Language (DML)
💾 DML queries are essential after defining the structure (using DDL) to manage the data values stored inside the tables.
🔎 Key DML commands include SELECT (to display data values), INSERT (to add new data values), UPDATE (to modify existing data values), and DELETE (to remove specific data values).
Data Control Language (DCL)
🛡️ DCL methods are utilized for controlling access authorization, auditing database usage, and managing space allocation.
🔑 Key DCL commands are GRANT (to authorize user access to tables) and REVOKE (to cancel previously given user access permissions).
💾 DCL also includes COMMIT (to finalize database saves) and ROLLBACK (to cancel database saves).
Key Points & Insights
➡️ Understanding the three core SQL query types (DDL, DML, DCL) is fundamental for operating a MySQL database system.
➡️ DDL focuses on structure creation and modification (e.g., CREATE, ALTER, DROP), while DML focuses on data interaction (e.g., SELECT, INSERT, UPDATE, DELETE).
➡️ DCL manages security and transaction control (e.g., GRANT, REVOKE, COMMIT, ROLLBACK).
📸 Video summarized with SummaryTube.com on Nov 25, 2025, 01:59 UTC
Find relevant products on Amazon related to this video
As an Amazon Associate, we earn from qualifying purchases

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