I wanted the leftmost string from a specific string.
Ex. sds_djfh_jdj I want sds for this I used the  
LEFT('string',FIND("_",'string')-1)
but in my case another character may appear before the _ character
Ex. sds#_djfh_jdj (I want just sds but the formula that I use will give me sds#)
Can someone tell me how do I solve the problem.
 
     
    