Oracle updating a view

If you need to specify the DELETE clause of the merge_update_clause, then you must also have the DELETE object privilege on the target table.where_clause: The clauses in the MERGE statement have the following definitions.file,10) full (contracts_file) */ * from contracts_file ))) f on d.contract_id = f.contract_id when matched then update set desc = f.desc, init_val_loc_curr = f.init_val_loc_curr, init_val_adj_amt = f.init_val_adj_amt when not matched then insert values ( f.contract_id, f.desc, f.init_val_loc_curr, f.init_val_adj_amt); In Oracle Database 10g, the MERGE statement has been extended to cover a larger variety of complex and conditional data transformations, allowing faster loading of large volumes of data.You should use the MERGE statement to select rows from one or more sources for insert or update of one or more tables.INTO Clause - The INTO clause is used to specify the target table into which you are inserting or updating.USING Clause - The USING clause specifies the source of the data to be updated or inserted.The WHERE condition can apply to either the data source or the target table.

where_clause - You must specify the where_clause if you want Oracle to execute the update operation only if the specified condition is true.If the MERGE statement deletes a row, any delete triggers defined on the target table will be activated for each row deletion. The WHERE clause can be specified by itself or in concert with the merge_insert_clause.If both are specified, then the order of the clauses is not important.MERGE allows you to avoid multiple INSERT, UPDATE, and DELETE DML statements by combining the operations into a single statement.MERGE is what is known as a deterministic statement.

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