鍍金池/ 教程/ 數(shù)據(jù)庫(kù)/ SQLite Order By
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SQLite Order By

SQLite 的 ORDER BY 子句是用來(lái)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(yǔ)法

ORDER BY 子句的基本語(yǔ)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 降序排序：

    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 降序排序：

    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