Writing sql scripts11/4/2023 You should use the GROUP BY clause whenever you need to calculate aggregate functions for groups of rows. In general, you should use the DISTINCT clause whenever you only need to return unique rows from a table. You can also run any SQL statement using the SQLNonQuery() function, so an alternative way of creating a database is the following: SQLNonQuery('CREATE DATABASE CSCS') Next, you create a table of users. This can be a significant performance penalty for queries that return a large number of rows. To create an SQL script in the Script Editor: On the Workspace home page, click SQL Workshop and then SQL Scripts. The first statement initializes the SQL Server connection string (using master DB) and the second string creates a new database. MySQL cannot optimize GROUP BY queries in the same way, because the GROUP BY clause requires MySQL to calculate aggregate functions for each group of rows. This can be a significant performance improvement for queries that return a large number of rows. I'm confused about your DISTINCT example, definitely not true for MySQL as MySQL can optimize DISTINCT queries by using an index to quickly find and remove duplicate rows. Not sure how it can be "bad practice" to use a %searchitem% if that's how the data is! Presumably a good idea to use other ANDed statements to try to reduce the list so that the final scanned set is as limited as possible - presuming such limitations are viable in the scenario. ORDER BY and LIMIT still sorts all the records, otherwise you'd never be able to do paged sorted lists.
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