在SQLite中获取表中已填充行的总数

Question

But i can not got my proper solution. 但是我找不到合适的解决方案。 How is it possible in Sqlite? 在Sqlite中怎么可能？

I Know about get using for loop. 我知道使用for循环。 but i want to get by query. 但我想查询。

Please help me on this issue. 请帮我解决这个问题。

Thanks in Advance. 提前致谢。

Answer 1

A query like this will work: 这样的查询将起作用：

SELECT COUNT(*) from raw where rawData <> '' AND rawData IS NOT NULL

This assumes there is a table called "raw" and the column you're checking against is "rawData" 假设存在一个名为“ raw”的表，要检查的列为“ rawData”