Sqlgroupby syntax and instance

The sqlgroupby syntax is used in conjunction with the instance groupby statement groupby to group result sets based on one or more columns. Sqlgroupby syntax selectcolumn_name, aggregate_function (column_name) fromtable_namewherecolumn_nameoperatorvaluegroup SQL group by syntax and instance
Group by statement
The group by statement is used in combination with the aggregate function to group result sets based on one or more columns.

SQL group by syntax

Select column_name, aggregate_function (column_name)
From table_name
Where column_name operator value
Group by column_name

Let's look at a group by instance.

For example, the content in the table is as follows:

Gameid best top spam

111 1 1 1

121 1 1 0

123 0 1 1

111 1 0 1

The result of getting the best top spam number is

Gameid best top spam

111 2 1 2
121 1 1 0
123 0 1 1

Select gameid, sum (best) as bestcnt, sum (top) as tocnt, sum (spam) as spamcnt
From table
Group by gameid

How to use in

$ SQL = "select gameid, sum (best) as best, sum (top) as top, sum (spam) as spam, from tablename group by gameid order by gameid asc ";

Let's look at a simple example.

Table
Win or lose by date
-9 wins
-9 wins
2009-12-9 negative
2009-12-9 negative
2009-12-10 negative
-12-10 wins
2009-12-10 negative

Query Result
Date wins/loses
2009-12-9 2 2
2009-12-10 1 2

Select date,
Sum (decode (winning, winning )),
Sum (decode (winning or losing, 'negative ))
From database table
Group by date