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私はジュニアRuby-mysqlプログラマで、私の(ストアドプロシージャ)クエリ結果を高速にする方法を知りたいと思います。 。ここ私のストアドプロシージャはどのように素早く美しいものにするのですか?(select。select .. select ..)
は私のストアドプロシージャの で、キャッシュが私の手順が速くなります..私は.. SQL_CACHEを使用していますが、私はよく分からない..:(
DROP PROCEDURE IF EXISTS GET_AV //
CREATE PROCEDURE GET_AV()
BEGIN
DECLARE OVERALL FLOAT ;
DECLARE MALE FLOAT ;
DECLARE FEMALE FLOAT ;
DECLARE UNDER25 FLOAT ;
DECLARE ABOVE25 FLOAT ;
DECLARE UNDER25MALE FLOAT ;
DECLARE UNDER25FEMALE FLOAT ;
DECLARE ABOVE25MALE FLOAT ;
DECLARE ABOVE25FEMALE FLOAT ;
DECLARE CNT FLOAT;
#AVERAGE OVERALL
select SQL_CACHE avg(r.frq) as AVG_OVERALL INTO OVERALL from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id;
#AVERAGE MALE
select SQL_CACHE avg(r.frq) as AVG_MALE INTO MALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id WHERE GENDER = 1;
#AVERAGE FEMALE
select SQL_CACHE avg(r.frq) as AVG_FEMALE INTO FEMALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id WHERE GENDER = 2;
#AVERAGE UNDER25
select SQL_CACHE avg(r.frq) as AVG_UNDER_25 INTO UNDER25 from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id where AGE <= 25;
#AVERAGE ABOVE25
select avg(r.frq) as AVG_ABOVE_25 INTO ABOVE25 from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id where AGE >= 25;
#AVERAGE UNDER 25 & MALE
select SQL_CACHE avg(r.frq) as AVG_UNDER_25_MALE INTO UNDER25MALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id WHERE AGE <= 25 AND GENDER = 1;
#AVERAGE UNDER 25 & FEMALE
select SQL_CACHE avg(r.frq) as AVG_UNDER_25_FEMALE INTO UNDER25FEMALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id WHERE AGE <= 25 AND GENDER = 2;
#AVERAGE ABOVE25 & MALE
select SQL_CACHE avg(r.frq) as AVG_ABOVE_25_MALE INTO ABOVE25MALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id where AGE >=25 AND GENDER = 1;
#AVERAGE ABOVE25 & FEMALE
select SQL_CACHE avg(r.frq) as AVG_ABOVE_25_FEMALE INTO ABOVE25FEMALE from tbl_survey as s inner join tbl_respondent as r on s.s_id = r.s_id WHERE AGE >= 25 AND GENDER = 2;
SELECT OVERALL,MALE,FEMALE,UNDER25 ,ABOVE25 , UNDER25MALE,UNDER25FEMALE ,
ABOVE25MALE ,ABOVE25FEMALE;
END //
今幸運にもその遅すぎません.. しかし、私はそれをもっと速くて美しいコード方法にする方法を知りたい:(
の最高のそれを試してみてください。 –