错误：在 SQL 表达式末尾缺少“LOOP”

Question

错误：SQL 表达式末尾缺少“LOOP” 上下文：PL/pgSQL 函数“player_height_rank”在第 9 行附近的编译

这是我的代码：

CREATE OR REPLACE FUNCTION player_height_rank (irstname VARCHAR, lastname VARCHAR) RETURNS int AS $$ 

DECLARE

    rank INTEGER := 0;
    offset INTEGER := 0;
    tempValue INTEGER := NULL;
    r record;
BEGIN

FOR r IN SELECT ((p.h_feet * 30.48) + (p.h_inches * 2.54)) AS height, p.firstname, p.lastname
    FROM players p
    WHERE p.firstname = $1 AND p.lastname = $2;
    ORDER BY ((p.h_feet * 30.48) + (p.h_inches * 2.54)) DESC, p.firstname, p.lastname

    LOOP

        IF r.height = tempValue then
            offset := offset + 1;
        ELSE
            rank := rank + offset + 1;
            offset := 0;
            tempValue := r.height;
        END IF;

        IF r.lastname = $4 AND r.lastname = $3 THEN
            RETURN rank;
        END IF;
    END LOOP;

    -- not in DB
    RETURN -1;

    END;
    $$ LANGUAGE plpgsql;

Answer 1

在你的 WHERE 子句中分号是多余的

WHERE p.firstname = $1 AND p.lastname = $2; -- delete semicolon

更正该部分并重试。