substring locate

1. update ukms_prod_param set Desc_metric =   substring( Desc_metric,  locate ( ' ' , Desc_metric ) + 1 )
2. update ukms_prod_param set Desc_metric =   substring( Desc_metric,  1, locate ( ':' , Desc_metric ) -1 )
3. update ukms_prod_param set Desc_metric = ( select  Desc_metric from repax_prod_info_desc where  repax_prod_info_desc.column_name = ukms_prod_param.Column_Name )