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, . […]
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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 […]
Apache Derby – Delete Data The DELETE statement is used to delete rows of a table. Just like the UPDATE statement, Apache Derby provides two types of Delete (syntax): searched delete and positioned delete. The searched delete statement deletes all the specified columns of a table. Syntax The syntax of the DELETE statement is as […]