Updating fetch in plsql proco rat serial number dating
Of course this does not answer the question of why you'd want to place a parent attribute in a child table.
It’s important to know when not to use cursor FOR loops.
Developers often tell me that they write a cursor FOR loop to fetch a single row. Oracle Database does so much of the work for you, saving several lines of code and several minutes of typing.
But there’s a problem with using a cursor FOR loop for a single-row fetch: the resulting code is very misleading. However, from a best practices standpoint, writing code that is transparent in purpose and easy to read and understand is most important.
Let’s take a closer look at these five cursor FOR loop recommendations. This advice may come as something of a shock to you.
In these type of situations, it is ideal to use a Update Cursor, than using the default read only one.
This process of extracting the elements of a collection is called refers to a LOB object attribute, then you must first initialize it with a value of empty or null. Also, if you are updating a LOB value using some method other than a direct to set the column to the value previously specified as the default value for the column.