This will use "CASE WHEN" which has not been explained in any previous exercises. mdateteam1score1team2score2 1 July 2012 ESP 4 ITA 0 10 June 2012 ESP 1 ITA 1 10 June 2012 IRL 1 CRO 3 ... Notice in the query given every goal is listed. If it was a team1 goal then a 1 a...
This will use "CASE WHEN" which has not been explained in any previous exercises. Notice in the query given every goal is listed. If it was a team1 goal then a 1 appears in score1, otherwise there is a 0. You could SUM this column to get a count of the goals scored by team1....
By performing this self-join, the query retrieves information about each employee and their corresponding supervisor. This query is useful for analyzing hierarchical relationships within the organization, such as identifying supervisors for each employee. Output: Output of the said SQL statement shown he...
The above SQL query joins the orders table with the customers and products tables to fetch the order details along with customer names and product names. The query starts by selecting the columns we want to retrieve: order_id, order_date, customer_name, and product_name. It specifies the or...
13.List every match with the goals scored by each team as shown. This will use "CASE WHEN" which has not been explained in any previous exercises. Notice in the query given every goal is listed. If it was a team1 goal then a 1 appears in score1, otherwise there is a 0. You coul...
13.List every match with the goals scored by each team as shown. This will use "CASE WHEN" which has not been explained in any previous exercises. Notice in the query given every goal is listed. If it was a team1 goal then a 1 appears in score1, otherwise there is a 0. You coul...
caarloshenrique/sql-exercises Star0 Code Issues Pull requests 🐬Um repositório para resolução de exercícios com consultas SQL sqldatabasekeynessinner-joinnested-search Updatedon May 26, 2020 TSQL mjvillacresesn/SQL Star0 Code Issues
SQL-SQL_Zoo/09_self_join.sql Go to file Copy path edsfocciMove exercises into separate repositories Latest commit29da795on Sep 27, 2013History 1contributor 98 lines (87 sloc)3.29 KB RawBlame --1. How many stops are in the database. ...
6.9 Exercises 1. On page 192 we discussed a query that could produce a list of timetable clashes . It was suggested that only a very clever optimiser would spot that a cross join was being made between two identical sets of data. Suppose that the DBMS’s query optimiser proves inadequate...
Training and Exercises Supply Chain Assessment Review All Key Topics Review Questions 22 The Importance of Frameworks, Policies, Procedures, and Controls Frameworks Policies and Procedures Category Control Type Audits and Assessments Review All Key Topics Review Questions Hands-on LAB Ac...