如何使用C＃获取mysql表中特定项目的计数

Question

I am tried to get count of a particular item from mysql table using c#.but i got nothing

My code

string Batch = textBox8.Text;
string batchnumber = ("SELECT COUNT [Batch_No] FROM Orders where Batch_No='" + Batch + "'");

orders is my table and batch_no is the column and i want to get the count of particular batch number in the table.How can i do this?

Answer 1

Change COUNT [Batch_No] to COUNT(Batch_No) . It will work.

Try this:

string Batch = textBox8.Text;
string batchnumber = ("SELECT COUNT(Batch_No) FROM Orders WHERE Batch_No='" + Batch + "'");