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July 9 2025
The Symphony of SQL SELECT: An Overture to Data Elegance
In the grand orchestration of databases, the SQL SELECT statement emerges as the conductor, orchestrating a harmonious flow of data. Let us delve into the syntax, examples, and nuances of this melodic command.
The Prologue: Crafting the Syntax
Behold the fundamental syntax of the SQL SELECT statement, a majestic composition in its simplicity:
-- Fetching specific columnsSELECT column1, column2, columnN FROM table_name;
-- Reveling in the splendor of all columnsSELECT * FROM table_name;
The Tale of Tables: A Symphony in Creation
As our narrative unfolds, imagine a tableau where the table CUSTOMERS comes to life through the wizardry of the CREATE TABLE statement. Witness the birth of a masterpiece:
CREATE TABLE CUSTOMERS (ID INT NOT NULL,
NAME VARCHAR (20) NOT NULL,
AGE INT NOT NULL,
ADDRESS CHAR (25),
SALARY DECIMAL (18, 2),
PRIMARY KEY (ID)
);
The Ephemeral Dance of Data: INSERTing the RecordsIn the dance of creation, records pirouette onto the stage through the enchanting INSERT statement:
INSERT INTO CUSTOMERS VALUES(1, 'Ramesh', 32, 'Ahmedabad', 2000.00 ),
(2, 'Khilan', 25, 'Delhi', 1500.00 ),
(3, 'Kaushik', 23, 'Kota', 2000.00 ),
(4, 'Chaitali', 25, 'Mumbai', 6500.00 ),
(5, 'Hardik', 27, 'Bhopal', 8500.00 ),
(6, 'Komal', 22, 'Hyderabad', 4500.00 ),
(7, 'Muffy', 24, 'Indore', 10000.00 );
Act I: SELECTing Specific Columns - A Precise SonataIn the first act, our SELECT statement performs a sonata, echoing only the voices of "ID," "NAME," and "SALARY":
-- The Sonata of SELECTSELECT ID, NAME, SALARY FROM CUSTOMERS;The audience is enraptured by the result:
ID NAME Salary
1 Ramesh 2000.00
2 Khilan 1500.00
3 Kaushik 2000.00
4 Chaitali. 6500.00
5 Hardik 8500.00
6 Komal 4500.00
7. Muffy 10000.00
Act II: SELECTing All Columns - An Opulent Symphony
In the second act, the grandeur unfolds as the SELECT statement embraces all columns:
-- The Opulent SymphonySELECT * FROM CUSTOMERS;
The tableau expands, revealing the full splendor:
ID. NAME. AGE. ADDRESS SALARY
1 Ramesh 32 Ahmedabad 2000.00
2 Khilan. 25 Delhi 1500.00
3. Kaushik 23 Kota 2000.00
4. Chaitali 25 Mumbai 6500.00
5. Hardik. 27 Bhopal 8500.00
6. Komal 22 Hyderabad 4500.00
7. Muffy 24 Indore 10000.00
The Crescendo of Mastery: SELECT UnveiledIn the crescendo of our SQL symphony, the SELECT statement stands unveiled, a maestro orchestrating the harmony of data. As you embark on your SQL journey, may your queries resonate with elegance and precision. 🎶ðŸŽ
SAJAN
Fonder & CEO, My Analytics School
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