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Saved by uncleflo on April 18th, 2018.
The EXPLAIN statement provides information about how MySQL executes statements. EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE statements. EXPLAIN returns a row of information for each table used in the SELECT statement. It lists the tables in the output in the order that MySQL would read them while processing the statement. MySQL resolves all joins using a nested-loop join method. This means that MySQL reads a row from the first table, and then finds a matching row in the second table, the third table, and so on. When all tables are processed, MySQL outputs the selected columns and backtracks through the table list until a table is found for which there are more matching rows. The next row is read from this table and the process continues with the next table.
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Saved by uncleflo on February 22nd, 2015.
Last month, D-Sight Web was updated with a pretty awaited feature: spitting the work between experts when evaluating alternatives and defining preferences in a decision process. In other words and without going into too much details (for that, read the release announcement), this typically allows for a technical expert to only provide input for technical criteria and for a legal expert to focus on legal criteria – for instance.
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