Oracle update based on a query returning multiple values

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SQL FAQ - Oracle FAQ

  http://www.orafaq.com/wiki/SQL_FAQ
COMMIT - save work done SAVEPOINT - identify a point in a transaction to which you can later roll back ROLLBACK - undo the modification I made since the last COMMIT SET TRANSACTION - Change transaction options like isolation level and what rollback segment to use SET ROLE - set the current active roles DML are not auto-commit. If you include the SAMPLE clause within a multi-table or remote query, you will get a parse error or "ORA-30561: SAMPLE option not allowed in statement with multiple table references"

  http://www.akadia.com/services/ora_important_part_3.html
A REF CURSOR is strong if it is strongly typed, which means the TYPE statement includes a RETURN clause defining what structure is allowable (number of items and datatypes) for data fetched through a cursor variable based on this TYPE. Reboot your computer Restrict the Number of Records While developping database application we often have to restrict the number of records an end user can insert into a table

  http://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_10007.htm
Note: If you insert string literals into a RAW column, then during subsequent queries, Oracle Database will perform a full table scan rather than using any index that might exist on the RAW column. See Also: "Referring to Partitioned Tables and Indexes" and "Updating a Partition: Example" dblink Specify a complete or partial name of a database link to a remote database where the object is located

  http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_10002.htm
* (all-column wildcard) Specify the all-column wildcard (asterisk) to select all columns, excluding pseudocolumns, from all tables, views, or materialized views listed in the FROM clause. Oracle processes hierarchical queries as follows: A join, if present, is evaluated first, whether the join is specified in the FROM clause or with WHERE clause predicates

  http://www.thatjeffsmith.com/archive/2012/06/running-multiple-queries-in-oracle-sql-developer/
Is there any way to run all the quires at a time and get the result individually? Q2)if so, Is there any way to export the result of each select query is automatically to excel sheet. What is Fetch? After you run send your query to Oracle, it has to do 3 things: Parse Execute Fetch Technically it has to do at least 2 things, and sometimes only 1