Hi,
The correct sintax of TSQL Update command is:
UPDATE tablename SET field1=value1, field2=value2, field3=value3, fieldN=valueN WHERE condition
First...
You are missing the commas (,) character like a separator between fields and values.
Second...
You are using a clause AND without WHERE and CONDITION.
Third...
You must to place a character (') before and after each string field.
Like this:
ExecuteSqlCommand("UPDATE member SET tmembername ='" & membername & "'," & "taddress='" & address & "',"........etc)
I recommend to you use stored procedures to manipulate the data into a database.
Regards