我试图从本地SQLite数据库检索值。通过“itemnumber ASC”命令表的条目。
当有多个条件查询,我想通过我的那里的条件的顺序进行排序的选择项。
数据库:
CREATE TABLE `Articles`
(
`Itemnumber` TEXT,
`Description` TEXT DEFAULT NULL,
`Sellingprice_` REAL DEFAULT NULL,
PRIMARY KEY(`Itemnumber`)
);
INSERT INTO Articles VALUES ('00000015', 'Lorem ipsum', 15.99);
INSERT INTO Articles VALUES ('00000016', 'Lorem ipsum', 16.99);
INSERT INTO Articles VALUES ('00000018', 'Lorem ipsum', 18.99);
INSERT INTO Articles VALUES ('00000019', 'Lorem ipsum', 19.99);
INSERT INTO Articles VALUES ('00000021', 'Lorem ipsum', 21.99);
查询:
SELECT *
FROM Articles
WHERE Itemnumber LIKE '00000021'
OR Itemnumber Like '00000015'
OR Itemnumber Like '00000018';
结果:
[ITEMNUMBER] [DESCRIPTION] [SELLINGPRICE]
00000015 Lorem ipsum 15.99
00000018 Lorem ipsum 18.99
00000021 Lorem ipsum 21.99
但它需要这样的:
[ITEMNUMBER] [DESCRIPTION] [SELLINGPRICE]
00000021 Lorem ipsum 21.99
00000015 Lorem ipsum 15.99
00000018 Lorem ipsum 18.99
您可以定义order by
是这样的:
order by
case Itemnumber
when '00000021' then 0
when '00000015' then 1
when '00000018' then 2
end;