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When you run a query in MySQL Workbench you get actually 2 times in the action output window. The headeing also shows what they are for: There's the execution time on the server (which is probably your ~16s) and the, usually much larger, fetch time, to transport the data from the server to the client. With millions of records that can easily take minutes ...


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The 16.04 seconds is a timer on the client that measures the amount of time that passed between the call and the execution of the query (if you want to be more specific than that, the wall clock time between calling start_timer() and mysql_end_timer(), something that can lead to hilarious results like this one I got). The reason that you think that it took ...


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To complete the answers, Oracle's push for "replacing" the query cache functionality is the memcached integration.


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In PostgreSQL you can do it using column aliasing: postgres=# CREATE TABLE product (product_id INTEGER, name TEXT); CREATE TABLE postgres=# INSERT INTO product (product_id, name) VALUES (1, 'product 1'), (2, 'product 2'); INSERT 0 2 postgres=# SELECT p.id FROM product p (id); id ---- 1 2 (2 rows) Don't know if it works the same way in MySQL, ...


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Check out the correct answer to this question - and Bill Karwin's comment on that answer. I was quite surprised to learn that INTO was optional - but indeed it is, although according to the standard it shouldn't be. Amazingly enough, Oracle does require it - must be the only time that Oracle actually enforces one of the ANSI standards where (many*) others ...


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Alter table blog change read-more read_more varchar(255) not null Reference: click


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I am a big fan of dump, edit and insert. but you do not have to open the text file (dump file) to change it (this is especially usefull when it is several milion lines long). if you want to dump the database MYDATABASE. mysqldump MYDATABASE > mydump.sql then use sed to replace the old database name with new one like this sed -i ...



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