SQLite Order By

SQLite 的 ORDER BY 子句是用來基于一個(gè)或多個(gè)列按升序或降序順序排列數(shù)據(jù)。

語法

ORDER BY 子句的基本語法如下：

SELECT column-list 
FROM table_name 
[WHERE condition] 
[ORDER BY column1, column2, .. columnN] [ASC | DESC];

您可以在 ORDER BY 子句中使用多個(gè)列。確保您使用的排序列在列清單中。

實(shí)例

假設(shè) COMPANY 表有以下記錄：

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
1           Paul        32          California  20000.0
2           Allen       25          Texas       15000.0
3           Teddy       23          Norway      20000.0
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0
6           Kim         22          South-Hall  45000.0
7           James       24          Houston     10000.0

下面是一個(gè)實(shí)例，它會(huì)將結(jié)果按 SALARY 升序排序：

sqlite> SELECT * FROM COMPANY ORDER BY SALARY ASC;

這將產(chǎn)生以下結(jié)果：

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
7           James       24          Houston     10000.0
2           Allen       25          Texas       15000.0
1           Paul        32          California  20000.0
3           Teddy       23          Norway      20000.0
6           Kim         22          South-Hall  45000.0
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0

下面是一個(gè)實(shí)例，它會(huì)將結(jié)果按 NAME 和 SALARY 升序排序：

sqlite> SELECT * FROM COMPANY ORDER BY NAME, SALARY ASC;

這將產(chǎn)生以下結(jié)果：

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
2           Allen       25          Texas       15000.0
5           David       27          Texas       85000.0
7           James       24          Houston     10000.0
6           Kim         22          South-Hall  45000.0
4           Mark        25          Rich-Mond   65000.0
1           Paul        32          California  20000.0
3           Teddy       23          Norway      20000.0

下面是一個(gè)實(shí)例，它會(huì)將結(jié)果按 NAME 降序排序：

sqlite> SELECT * FROM COMPANY ORDER BY NAME DESC;

這將產(chǎn)生以下結(jié)果：

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
3           Teddy       23          Norway      20000.0
1           Paul        32          California  20000.0
4           Mark        25          Rich-Mond   65000.0
6           Kim         22          South-Hall  45000.0
7           James       24          Houston     10000.0
5           David       27          Texas       85000.0
2           Allen       25          Texas       15000.0

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