Answers for "how to duplicate rows in sql"

sql count duplicate rows

SELECT _column, COUNT(*) 
FROM _table
GROUP BY _column
HAVING COUNT(*) > 1

Posted by: Guest on January-20-2021

duplicate a column in sql

ALTER TABLE Table1
ADD SubCategory2 {Type of subcategory 1} {NULL|NOT NULL} 
UPDATE Table1 SET SubCategory2 = SubCategory;

Posted by: Guest on April-23-2021

Code answers related to "how to duplicate rows in sql"