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The modifications made to each row affected by an UPDATE statement are determined by the list of assignments following the SET keyword.
If this happens, the UPDATE will terminate with an error ("subquery may return only one row").
An UPDATE statement is used to modify a subset of the values stored in zero or more rows of the database table identified by the qualified-table-name specified as part of the UPDATE statement.
If the UPDATE statement does not have a WHERE clause, all rows in the table are modified by the UPDATE.
Keep in mind that the column index here is 1-based, the first column will be at index 1, the second at index 2, and so on. "; Prepared Statement statement = conn.prepare Statement(sql); String(1, "bill"); int rows Deleted = statement.execute Update(); if (rows Deleted first of all i want to Thank you i was not much more familar with Oracle and now i'm doing my projects using oracle and your samples may help me to did my projects as a guide line so starting from now I will did my project .
If you are not sure or don’t know exactly the index of column, so passing a column name would be useful: String sql = "UPDATE Users SET password=?