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SQL Query (UPDATE Statement)

SQL Query       Update Statement: Update statement enables to update existing data in a table. Update statement without where clause affects all rows of table. It can update one or more records in a table. Syntax of Update Statement: update <table_name> set <column1>=<expression1>, <column2>=<expression2>,…., <columnN>=<expressionN> where condition; Here, column1, column2,…., columnN