exception sql (syntaxe incorrecte près «) »)

Question

ce qui est l'erreur ci-dessus s'il vous plaît corriger

string cmd = @"SELECT * FROM [tbl_students] WHERE course_id=@courseId 
       AND branch_id IN(" + branchId + @") 
       AND (@firstYrPercent is null OR first_year_percent>=@firstYrPercent 
       AND (@secondYrpercent is null OR second_year_percent>=@secondYrPercent) 
       AND (@thirdYrPercent is null OR third_year_percent>=@thirdYrPercent) 
       AND (@finalYearpercent is null OR final_year_percent>=@finalYearpercent) 
       AND (@currentDegeePercentage is null OR current_degree_percent>=@currentDegeePercentage) 
       AND (@passoutYear is null OR passing_year>=@passoutYear) 
       AND (@currentBacklog is null OR current_backlog<=@currentBacklog) 
       AND gender=@sex 
       AND (@eGap is null OR gapin_education<=@eGap) 
       AND (@highSchoolPercentge is null OR highschool_percentage>=@highSchoolPercentge) 
       AND (@higherSchoolPercentage is null OR ssc_percentage>=@higherSchoolPercentage) 
       AND (@grauationPercentage is null OR graduation_percentage>=@grauationPercentage) 
       AND (@diplomaPercentage is null OR diploma_percentage>=@diplomaPercentage) 
       AND (@noOfAtkt is null OR number_of_ATKT<=@noOfAtkt) 
       AND (@date is null OR DOB>=@date)"; 

Answer 1

Vous avez une parenthèse fermante manquante à la fin de la 3ème ligne:

AND (@firstYrPercent is null OR first_year_percent>=@firstYrPercent 

Answer 2

Suite à la ligne n'a pas parenthèse fermante

AND (@firstYrPercent is null OR first_year_percent>=@firstYrPercent