what is the best practice when do the CRUD for the nested object
Sometime I have to do the CRUD operation for some nested objects.
Take the "create tab开发者_如何转开发le" operation in oracle console for exmaple:
A table contains some information,name/tablespace/comment,and the most importent:
columns.
A table can have as many columns,and each column have its own attributes(name/type/length/nullable...)
So the columns are nested objects under the table. They exist along with the table.
So how to do the CRUD for the table?
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