I have a table with rows of data and need to create a comma delimited string for all the rows for a column. Can this be achieved just using the the SELECT statement in SQLite or I have to get the data into Cursor and build the string by iterating through it?
我有一个包含数据行的表，需要为列的所有行创建逗号分隔的字符串。这可以只使用SQLite中的SELECT语句来实现，或者我必须将数据导入Cursor并通过迭代来构建字符串吗？
For Example:
例如：
UserId
1df4181d-6c52-4aa3-926f-2dacb0a68c70
1df4181d-6c52-4aa3-926f-2dacb0a68c71
1df4181d-6c52-4aa3-926f-2dacb0a68c72
1df4181d-6c52-4aa3-926f-2dacb0a68c73
1df4181d-6c52-4aa3-926f-2dacb0a68c74
1df4181d-6c52-4aa3-926f-2dacb0a68c75
into
成
1df4181d-6c52-4aa3-926f-2dacb0a68c70,1df4181d-6c52-4aa3-926f-2dacb0a68c71,1df4181d-6c52-4aa3-926f-2dacb0a68c72,1df4181d-6c52-4aa3-926f-2dacb0a68c73,1df4181d-6c52-4aa3-926f-2dacb0a68c74,1df4181d-6c52-4aa3-926f-2dacb0a68c75
Any suggestions would be greatly appreciated.
任何建议将不胜感激。
1 个解决方案
#1
23
You can use GROUP_CONCAT():
您可以使用GROUP_CONCAT（）：
select group_concat(yourColumn, ',')
from yourtable
请参阅SQL Fiddle with Demo
#1
23
You can use GROUP_CONCAT():
您可以使用GROUP_CONCAT（）：
select group_concat(yourColumn, ',')
from yourtable
请参阅SQL Fiddle with Demo