What are the 5 Basic SQL Commands?
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Currently most of the organizations are making an effective use of the data by utilizing various tools and technologies. One such tool is the Structured Query Language (SQL) is the backbone of relational database management. This is the language that is used to interact with the databases that allow you to retrieve, manipulate and manage the data effectively. For the developers it is necessary to understand the basic commands of the SQL.
Here in this article, we will discuss in detail about the 5 basic SQL commands in detail. So if you are thinking of becoming an SQL developer, then consider enrolling in SQL Training in Gurgaon. Taking this training may help you understand the five basic SQL commands.So let’s begin understand them:
5 Basic SQL Commands
Here we have discussed the 5 basic SQL commands in detail. SO if you have taken SQL Server Training in Noida you may be able to understand these commands easily:
1. SELECT: Getting Data from Your Database
The SELECT command is one of the most used SQL commands. It helps you fetch data from one or more tables in your database. Here's how it works:
Basic Syntax:
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SELECT column1, column2, ... FROM table_name WHERE condition;
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- SELECT column1, column2, ...: Choose the columns (data fields) you want to see. If you want all the columns, you can use SELECT *.
- FROM table_name:
Name the table from which you want to get the data.
- WHERE condition:
This is optional. It helps you filter the results based on certain conditions.
2. INSERT: Adding New Data
The INSERT command lets you add new data to your database.
Basic Syntax:
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INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);
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- INSERT INTO table_name:
Choose the table where you want to add data.
- (column1, column2, ...):
List the columns where you'll add the data.
- VALUES (value1, value2, ...):
Provide the actual data that goes into the columns.
3. UPDATE: Changing Existing Data
The UPDATE command lets you modify the data that already exists in your database.
Basic Syntax:
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UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition; |
- UPDATE table_name:
Choose the table to update.
- SET column1 = value1, column2 = value2, ...:
Specify which columns to update and their new values.
- WHERE condition:
This part is optional but important. It ensures you only change the rows that meet certain conditions, to avoid updating everything.
4. DELETE: Removing Data
The DELETE command is used to remove data from your database.
Basic Syntax:
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DELETE FROM table_name WHERE condition;
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- DELETE FROM table_name:
Choose the table from which to delete data.
- WHERE condition:
This is optional, but important. It makes sure only certain rows are deleted, so you don’t accidentally delete everything.
5. CREATE TABLE: Creating a New Table
The CREATE TABLE command helps you create a new table in your database.
Basic Syntax
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CREATE TABLE table_name ( column1 datatype constraints, column2 datatype constraints, ... ); |
CREATE TABLE table_name:
Choose the name for the new table.
(column1 datatype constraints, column2 datatype constraints, ...):
List the columns, what type of data they will hold (like numbers or text), and any rules (like "this column must have a value").
Apart from this, if you have taken SQL Online Training then this can help you implement these commands in your organization. Also regular practice of this can make you expert of the SQL.
Conclusion
From the above discussion, it can be said that whether you are aiming for the career in data management or looking to enhance your skills, taking the SQL course may help you a lot. Also you should have a strong understanding of these five basic SQL commands. All you need to do is to practice regularly and dedication to unlock the power of SQL.
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