The codes for the article SQL 455: Convert Date format into DD/MM/YYYY format in SQL

sql-queries-dates/convert_date_into_custom_format_in_SQL/sample_table_creation.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id INT AUTO_INCREMENT PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_convert_function_sql_server.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id INT IDENTITY(1,1) PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using CONVERT Function
+SELECT id, customer_name, CONVERT(VARCHAR(100), date_of_payment, 103) AS formatted_date FROM Payment;

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_date_format_function_mysql.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id INT AUTO_INCREMENT PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using DATE Function
+SELECT id, customer_name, DATE_FORMAT(date_of_payment, '%d/%m/%Y') AS converted_date FROM Payment;

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_format_function_sql_server.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id INT IDENTITY(1,1) PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using FORMAT Function
+SELECT id, customer_name, FORMAT(date_of_payment, 'dd/MM/yyyy') AS converted_date FROM Payment;

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_lpad_and_extract_function_postgresql.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id SERIAL PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using LPAD and EXTRACT Function
+SELECT id, customer_name, LPAD(EXTRACT(DAY FROM date_of_payment)::TEXT, 2, '0') || '/' || LPAD(EXTRACT(MONTH FROM date_of_payment)::TEXT, 2, '0') || '/' || EXTRACT(YEAR FROM date_of_payment)::TEXT AS converted_date FROM Payment

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_lpad_function_mysql.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id INT AUTO_INCREMENT PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using LPAD Function
+SELECT id, customer_name, CONCAT( LPAD(DAY(date_of_payment), 2, '0'), '/', LPAD(MONTH(date_of_payment), 2, '0'), '/', YEAR(date_of_payment) ) AS converted_date FROM Payment;

sql-queries-dates/convert_date_into_custom_format_in_SQL/using_to_char_function_postgresql.sql

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+-- A sample table creation 
+CREATE TABLE Payment ( id SERIAL PRIMARY KEY, customer_name VARCHAR(100), date_of_payment DATE ); 
+-- Insertion of sample data 
+INSERT INTO Payment (customer_name, date_of_payment) VALUES ('Alice Johnson', '2025-06-01'), ('Bob Smith', '2025-06-15'), ('Charlie Lee', '2025-06-20'), ('Diana Patel', '2025-06-25');
+-- Using TO_CHAR Function
+SELECT id, customer_name, TO_CHAR(date_of_payment, 'DD/MM/YYYY') AS converted_date FROM Payment;