sqlite sortorder

相關問題 & 資訊整理

sqlite sortorder

I would suggest that you have an additional column, user_specified_order which would represent the user's reordering of the rows in the UI via drag-drop. You must update each row when its user_specified_order value is invalidated by the drag-drop rep, and your ORDER BY param means: How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered. So, your query will be: Cursor cursor = db.query(TABLE_NAME, , If it is because the sort order is specific to just this one query then encode it in the query HOWEVER I strongly suggest you make this transparent to the calling application e.g. (Standard SQL syntax): SELECT T2.ID, T2.Category, T2.query_name_here_sort_, SQLite can step through an index in both directions, so in general, the index order does not matter., select * from ( select 'none' as col1, '0' as col2 union select * from category where id='2' ) t order by case when col1='none' then 0 else 1 end.,This tutorial shows you how to use SQLite ORDER BY clause to sort the result set using a single column, multiple columns in ascending and descending order. ,SQLite ORDER BY Clause - Learn SQLite in simple and easy steps starting from basic to advanced concepts with examples including database programming clauses command functions administration queries and usage along with PHP, PERL, C, C++, JAVA and Python i,SQLite Order By SQLite 的ORDER BY 子句是用来基于一个或多个列按升序或降序顺序排列数据。 语法ORDER BY 子句的基本语法如下: 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.. , SQLite doesn't support an actual date/time datatype. The dates and times are being inserted into the database as strings, and are therefore being sorted alphabetically on the SELECT statement. SQLite does support some date and time functions, but req,column-def ::= name [type] [[ CONSTRAINT name] column-constraint ]*. type ::= typename | typename ( number ) | typename ( number , number ). column-constraint ::= NOT NULL [ conflict-clause ] | PRIMARY KEY [ sort-order] [ conflict-clause ] | UNIQUE [ conf

相關軟體 SQLite 資訊

SQLite
SQLite 是一個實現自包含,無服務器,零配置,事務 SQL 數據庫引擎的進程內庫。 SQLite 的代碼是在公共領域,因此可以用於任何目的,商業或私人。 SQLite 是世界上應用最廣泛的數據庫,比我們可以計數的應用程序還要多,其中包括幾個備受矚目的項目。選擇版本:SQLite 3.21.0(32 位)SQLite 3.20.1(64 位) SQLite 軟體介紹

sqlite sortorder 相關參考資料
android - SQLite Change Sort Order for items on database - Stack ...

I would suggest that you have an additional column, user_specified_order which would represent the user's reordering of the rows in the UI via drag-drop. You must update each row when its user_sp...

https://stackoverflow.com

How do i order my SQLITE database in descending order, for an ...

and your ORDER BY param means: How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered. So, yo...

https://stackoverflow.com

mysql - SQLite and custom order by - Stack Overflow

If it is because the sort order is specific to just this one query then encode it in the query HOWEVER I strongly suggest you make this transparent to the calling application e.g. (Standard SQL synta...

https://stackoverflow.com

sorting - Sort order for sqlite index - Stack Overflow

SQLite can step through an index in both directions, so in general, the index order does not matter.

https://stackoverflow.com

sql - Sqlite union and sort order - Stack Overflow

select * from ( select 'none' as col1, '0' as col2 union select * from category where id='2' ) t order by case when col1='none' then 0 else 1 end.

https://stackoverflow.com

SQLite Order By - Sorting Result Set in Various Orders - SQLite Tutorial

This tutorial shows you how to use SQLite ORDER BY clause to sort the result set using a single column, multiple columns in ascending and descending order.

http://www.sqlitetutorial.net

SQLite ORDER BY Clause - Tutorialspoint

SQLite ORDER BY Clause - Learn SQLite in simple and easy steps starting from basic to advanced concepts with examples including database programming clauses command functions administration queries an...

https://www.tutorialspoint.com

SQLite Order By | 菜鸟教程

SQLite Order By SQLite 的ORDER BY 子句是用来基于一个或多个列按升序或降序顺序排列数据。 语法ORDER BY 子句的基本语法如下: SELECT column-list FROM table_name [WHERE condition] [ORDER BY column1, column2, .. columnN] [ASC | DESC]; 您可以在ORDER B...

http://www.runoob.com

sqlite3 - SQLite sort order on datetime column populated from C ...

SQLite doesn't support an actual date/time datatype. The dates and times are being inserted into the database as strings, and are therefore being sorted alphabetically on the SELECT statement. SQ...

https://stackoverflow.com

SQLite語法表@ 吉米.NET :: 痞客邦::

column-def ::= name [type] [[ CONSTRAINT name] column-constraint ]*. type ::= typename | typename ( number ) | typename ( number , number ). column-constraint ::= NOT NULL [ conflict-clause ] | PRIMAR...

http://jimmy0222.pixnet.net