This query would pull 1,000 sales records from the Sales table, then filter for the 200 records generated in the year 2016, and finally count the records in the data set.
Count the total number ofmobile logins for a specific time period This query shows the number of times any user logged in to Blackboard Learn from any app on any device.
This query will return all resolved issues from the“Teams in Space” project(clauses grouped by AND), and also all existing issues assigned to captainjoe.
This query combines multiple pieces, introduced above, into one query that gives only specific columns from multiple tables with several limitations set.
In our project, this query will certainly be helpful in other circumstances, so it is better to create a getActiveAuthorsQuery() method within the AuthorTable class and to call this method from ArticleForm as Listing 4-12 shows.
Show all of the individual logins for a specified time period This query is effectively the same as the"count the total number of mobile logins for a specific time period" query, with the distinction that it shows all of the raw data rather than just a count of the number of rows.
このクエリは次のようになります:。
This query should be something like:.
このクエリはホストBに対して発行されます。
This query is then therefore executed to host B.
このクエリは、SALE_DATEのインデックスをちゃんと使うことができます。
This query can use a straight index on SALE_DATE.
このクエリは、メーリングアドレスのための必要な情報のみを収集します。
This query only pulls the required information for mailing addresses.
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