That is, to track this for multiple teams, you wouldn't GROUP BY just "Result" in all of the queries, but rather by "TeamID, Result". Generally, in SQLite Count () function will work with non-NULL numeric values to return a number of times non-NULL values exist in a column based on the.
#Sqlite count consecutive code#
We can calculate our RunGroup field many ways, here's one way to do it that is pretty easy to understand (let's call the following code "SQL 1"):ĭoing this for multiple teams or divisions or whatever you need just requires more fields to be included as part of your GROUP BY expression. In SQLite Count () Function is an aggregate function that is used to return the total number of rows in a table based on the specified expression or conditions. Basically, the SQLite count () function has a capacity to work with nonnull numeric values, it is used to fetch the total of how many times column exits the nonnull values in the. The W on has 2 non-W results before it, so it gets a RunGroup of 2. The SQLite count () function is an aggregate function that is used to fetch the total number of rows from the table by using the specified expression and conditions. sqlite count the number of consecutive matching rows while excluding them SQL - SQLite count. The W on has 1 non-W result before it, as does the W's on 1/17 and 1/22. Best coding solution for query Count consecutive days. Note that the first W, on, has no results before it of any kind - so it's "RunGroup" would be 0. Let's look at all the W's to see how they can be broken into runs. The GROUP BY clause returns one row for each group. The GROUP BY clause a selected group of rows into summary rows by values of one or more columns. Not be obvious, but consider the following:Įach "run" of Results has the same number of results BEFORE it that are NOT equal to that result. The GROUP BY clause is an optional clause of the SELECT statement. (ordering is very important, of course), have in common. The trick is to see what each run of W's or L's, when ordered by GameDate This is the SQL statement, separated into logical sections for ease of. SUM(CASE WHEN Result = 'L' THEN 1 ELSE 0 END) as Losses FROM GameResultsīut how we do determine what was the longest winning streak, or losing streak, in that time period? Or, as of the last date, what the current streak is? Note the number of rows and columns several columns are repeated more often than. SELECT SUM(CASE WHEN Result = 'W' THEN 1 ELSE 0 END) as Wins, You can group by actorid and sum conditionally if there exists a consecutive day: select t.
Looking at the above table, it is easy to get what our "Win-Loss" record is for a period of time:
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