NettetIf you omit DISTINCT, this query returns both Smith records. If the SELECT clause contains more than one field, the combination of values from all fields must be unique for a given record to be included in the results. The output of a query that uses DISTINCT is not updateable and does not reflect subsequent changes made by other users. … NettetDISTINCT keyword in SQL is used to fetch only unique records from a database table. It is usually used in conjunction with the SELECT statement. For the uninitiated, the …
Distinct Definition & Meaning - Merriam-Webster
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Distinct Definition & Meaning - Merriam-Webster
NettetSELECT DISTINCT 查詢用法 (Example) 原本資料表的 City 欄位中有兩個重複值台北市,可是我們只想知道有哪幾個縣市有顧客而已,故我們使用 DISTINCT 關鍵字來限制僅取出欄位中 "不相同" 的值。. 若接著 SELECT DISTINCT 後面有指定兩個以上的欄位,則要符合所有欄位值皆 ... Nettet1. apr. 2024 · 1838, Henry Brougham, Historical Sketches of Statesmen Who Flourished in the Time of George III a noble performance, instinct with sound principle 1857, Charlotte Brontë, The Professor Her eyes, whose colour I had not at first known, so dim were they with repressed tears, so shadowed with ceaseless dejection, now, lit by a ray of the … NettetSELECT DISTINCT(emp_name) FROM sto_emp_salary_paid; (Se aplica a bases de datos SQL Server y MySQL) Usando la cláusula WHERE con DISTINCT. En este ejemplo, utilicé la cláusula WHERE con la sentencia SELECT/DISTINCT para recuperar sólo aquellos empleados únicos a los que el salario pagado es mayor o igual a 4500. darwin auction bedale