FIRST_VALUE (), one of our new analytic functions that comes with SQL Server 2012, returns the first value in the sorted data set. LAST_VALUE () returns the last value in […]
The “LEAD ()” function returns the next incoming value based on the specified offset value. If no such value exists, it returns “default”. Returns “NULL” if “default” is not entered […]
The functions RANK and DENSE_RANK are very similar to the ROW_NUMBER function. The difference is the ORDER_BY statement and the connections between these functions. The RANK function returns the same […]
Row_Number () is used to create a sort column in the record list that results from a sql query. In short, the rotating list is a function that creates line numbers for sorting. We can also group these line numbers by any field. This function comes with SQL 2005.
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What is the Grouping sets statement on sql server? What is the difference with Union? In our queries that contain the Sum function, we combine different grouping schemes using the […]
We can use CUBE and ROLLUP statements together with the GROUP BY statement to create sub-aggregations in our queries that contain the aggregate function. CUBE and ROLLUP are very similar, […]
1 Trek 820 – 2016 9 6 2016 379,99 2 Ritchey Timberwolf Frameset – 2016 5 6 2016 749,99 3 Surly Wednesday Frameset – 2016 8 6 2016 999,99 4 […]
You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table.
SQL Join Type Example 1 SQL Join Type Example 2 SQL Join Type Example 3 SQL Join Type Example 4 SQL Join Type Example 5 SQL Join Type Example 6 […]
Summary: in this tutorial, you will learn how to create a new database in SQL Server and execute the script to load the sample database. First, you need to download the […]
order_id customer_id order_status order_date requiered_date shipped_date store_id staff_id 1 259 4 2016-01-01 2016-01-03 2016-01-03 1 2 2 1212 4 2016-01-01 2016-01-04 2016-01-03 2 6 3 523 4 2016-01-02 2016-01-05 2016-01-03 […]
1 Debra Burks NULL firstname.lastname@example.org 9273 Thorne Ave. Orchard Park NY 14127 2 Kasha Todd NULL email@example.com 910 Vine Street Campbell CA 95008 3 Tameka Fisher NULL firstname.lastname@example.org 769C Honey […]