<div>
Are you using a join as part of the update or are you trying to update a view?<br />
<br />
Check out that error code:<br />
<a href="http://ora-01779.ora-code.com/" rel="ugc">http://ora-01779.ora-code.com/</a>
</div>


Are you using a join as part of the update or are you trying to update a view?

Check out that error code:
http://ora-01779.ora-code.com/ [http://ora-01779.ora-code.com/]

<div>
How to tell if it is a table or a view? thanks
</div>


How to tell if it is a table or a view? thanks

<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I tried to update a field(non-null field) in oracle table but got the following error. Anyone know the reason and suggestions?<br />
<br />
ORA-01779: cannot modify a column which maps to a non key-preserved table<br />
<br />
<br />
Thanks in advance.
</div>
</div>


Hello,

I tried to update a field(non-null field) in oracle table but got the following error. Anyone know the reason and suggestions?

ORA-01779: cannot modify a column which maps to a non key-preserved table


Thanks in advance.

SQL Update error

Oracle is an object-relational database management system. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java, but it also includes support for C and C++. Oracle also has its own enterprise modules and application server software.

Oracle Database

SQL (Structured Query Language) is designed to be used in conjunction with relational database products as of a means of working with sets of data. SQL consists of data definition, data manipulation, and procedural elements. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control.