FOR LOOP的語法錯誤

Question

我有這個功能。這是不完整的，沒有做任何有意義的是，但在寫作過程中我已經收到此錯誤：

ERROR: syntax error at or near "LOOP" 
LINE 26: END LOOP; 

任何人都可以看我的代碼，看看爲什麼？我for循環語法對我來說看起來很好。

CREATE FUNCTION assignGrades(prob numeric[], school_name text, school_id bigint) RETURNS void AS $$ 
DECLARE 
    num_grades integer ARRAY[6]; 
    found_school school_probs%ROWTYPE; 
    num_students simulated_records%ROWTYPE; 
    num_students_int bigint; 
    random_record simulated_records%ROWTYPE; 


BEGIN 
    SELECT INTO found_school * FROM school_probs WHERE school_code = school_id;--select the prob dist 
    SELECT INTO num_students * FROM simulated_records WHERE school = school_name; 
    SELECT COUNT(*) INTO num_students_int FROM simulated_records WHERE school = school_name; 
    num_grades[1] = num_students_int*found_school.probs[1]; 
    num_grades[2] = num_students_int*found_school.probs[1]; 
    num_grades[3] = num_students_int*found_school.probs[1]; 
    num_grades[4] = num_students_int*found_school.probs[1]; 
    num_grades[5] = num_students_int*found_school.probs[1]; 
    num_grades[6] = num_students_int*found_school.probs[1]; 

    FOR i IN 1..num_grades[1] LOOP 

     SELECT INTO random_record * FROM simulated_records WHERE school = school_name ORDER BY RANDOM() LIMIT 1; 
     IF random_record.grade IS NULL THEN 
      random_record.grade = 'A'; 
    END LOOP;--syntax error here 


END; 
$$ 
LANGUAGE plpgsql 

Answer 1

你已經錯過了

END IF; 

一部分。