running number sql design type code example

Example 1: sql row number

SELECT 
  ROW_NUMBER() OVER(PARTITION BY recovery_model_desc ORDER BY name ASC) 
    AS Row#,
  name, recovery_model_desc
FROM sys.databases WHERE database_id < 5;

Example 2: row number mssql

SELECT 
   ROW_NUMBER() OVER (
	ORDER BY first_name
   ) row_num,
   first_name, 
   last_name, 
   city
FROM 
   sales.customers;

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