Ред низходящ ред в sql
Примерен код
sql в азбучен ред
SELECT * FROM table_name ORDER BY col1 ASC; -- ASCending is default
SELECT * FROM table_name ORDER BY col1 DESC; -- DESCending
SELECT * FROM table_name ORDER BY col1 DESC, col2; -- col1 DESC then col2 ASCsql в низходящ ред
SELECT *
FROM employees
ORDER BY employees.employee_id DESC ;
· Ascending ( ASC)
· Descending ( DESC)реда на sql
SQL order of execution defines the
execution order of clauses.
-Select
It starts execution with
-from (Choose and join tables to get base data)
after from
-where ( filters base data )
-group by (Aggregates base data)
-having (filters aggregated data)
-select (returns final data)
-order by (sorts the final data)
-limit (limits the returned data to a row count)
Only select and from are mandatoryПодобни страници
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