Apache Derby – Update Data The UPDATE statement is used to update data in a table. Apache Derby provides two types of updates (syntax) namely searched update and positioned update. The searched UPDATE statement updates all the specified columns of a table. Syntax Following is the syntax of the UPDATE query − ij> UPDATE table_name […]

Apache Derby – GROUP BY Clause The GROUP BY clause is used with SELECT statements. It is used to form subsets in case of identical data. Usually, this clause is followed by ORDER BY clause and placed after the WHERE clause. Syntax Following is the syntax of GROUP BY clause − ij>SELECT column1, column2, . […]

Apache Derby – Retrieve Data The SELECT statement is used to retrieve data from a table. This returns the data in the form of a table known as result set. Syntax Following is the syntax of the SELECT statement − ij> SELECT column_name, column_name, … FROM table_name; Or, Ij>SELECT * from table_name Example Let us […]