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Showing posts with the label SQL QUERIES

SQL Important queries

Fetch record in ASC or DESC order  //DECENDING ORDER SELECT * FROM mytablename ORDER BY id DESC  //ASSENDING ORDER SELECT * FROM mytablename ORDER BY id ASC //WITH LIMIT  SELECT * FROM mytablename ORDER BY id DESC LIMIT 50 How to fetch last 50 records from table SELECT * FROM ( SELECT * FROM mytablename ORDER BY id DESC LIMIT 50 )sub ORDER BY id ASC  Update column fields using update commands  UPDATE tablename SET devicemodel='Data what you want to replace' where devicemodel='HUAWEI G730-U00'  Use Delete commands  DELETE FROM Persons WHERE FirstName = 'Peter'