MySqlの今年の月の結果を返す

Question

私は次のコードを書いていますが、それ以前に使ったことがありますが、誰かがもっと良いやり方をしているのだろうかと思っていました。

私は基本的に、日付が記された一連のデータから結果を返そうとしています。今年の月にフォーマットされた結果が必要です。

SELECT * FROM 
    (
    SELECT 
    1 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()),'-01-01') AS `from`, CONCAT(YEAR(NOW()),'-01-31') AS `to`, 'January' AS `fullMonth`, 'Jan' AS `shortMonth` 
    UNION SELECT 2 AS `month`, YEAR(NOW()) AS `year` ,CONCAT(YEAR(NOW()), '-02-01') AS `from`, CONCAT(YEAR(NOW()), '-02-', DAY(LAST_DAY(CONCAT(YEAR(NOW()), '-02-01')))) AS `to`, 'February' AS `fullMonth`, 'Feb' AS `shortMonth` 
    UNION SELECT 3 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-03-01') AS `from`, CONCAT(YEAR(NOW()), '-03-31') AS `to`, 'March' AS `fullMonth`, 'Mar' AS `shortMonth` 
    UNION SELECT 4 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-04-01') AS `from`, CONCAT(YEAR(NOW()), '-04-30') AS `to`, 'April' AS `fullMonth`, 'Apr' AS `shortMonth` 
    UNION SELECT 5 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-05-01') AS `from`, CONCAT(YEAR(NOW()), '-05-31') AS `to`, 'May' AS `fullMonth`, 'May' AS `shortMonth` 
    UNION SELECT 6 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-06-01') AS `from`, CONCAT(YEAR(NOW()), '-06-30') AS `to`, 'June' AS `fullMonth`, 'Jun' AS `shortMonth` 
    UNION SELECT 7 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-07-01') AS `from`, CONCAT(YEAR(NOW()), '-07-31') AS `to`, 'July' AS `fullMonth`, 'Jul' AS `shortMonth` 
    UNION SELECT 8 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-08-01') AS `from`, CONCAT(YEAR(NOW()), '-08-31') AS `to`, 'August' AS `fullMonth`, 'Aug' AS `shortMonth` 
    UNION SELECT 9 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-09-01') AS `from`, CONCAT(YEAR(NOW()), '-09-30') AS `to`, 'September' AS `fullMonth`, 'Sep' AS `shortMonth` 
    UNION SELECT 10 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-10-01') AS `from`, CONCAT(YEAR(NOW()) ,'-10-31') AS `to`, 'October' AS `fullMonth`, 'Oct' AS `shortMonth` 
    UNION SELECT 11 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-11-01') AS `from`, CONCAT(YEAR(NOW()), '-11-30') AS `to`, 'November' AS `fullMonth`, 'Nov' AS `shortMonth` 
    UNION SELECT 12 AS `month`, YEAR(NOW()) AS `year`, CONCAT(YEAR(NOW()), '-12-01') AS `from`, CONCAT(YEAR(NOW()), '-12-31') AS `to`, 'December' AS `fullMonth`, 'Dec' AS `shortMonth` 
    ) AS `dateFilter` 

Answer 1

多くの冗長な情報が格納されています。その後

(
    SELECT CONCAT(YEAR(NOW()), '-01-01') AS `from` UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-02-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-03-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-04-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-05-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-06-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-07-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-08-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-09-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-10-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-11-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-12-01') 
) 

、あなたは簡単に、例えば、あなたがMySQLの日付関数を使用したい他のすべての列を生成することができます。ただ、次の表を使用することを検討してください

SELECT 
    MONTH(`from`)    AS month, 
    YEAR(`from`)    AS year, 
    `from`     AS first_day, 
    LAST_DAY(`from`)   AS last_day, 
    DATE_FORMAT(`from`, '%M') AS full_month, 
    DATE_FORMAT(`from`, '%b') AS short_month 
FROM yourTable; 

Answer 2

ニースは、最大でTim Biegeleisenです。もっと簡単なコードに置き換えました。

SELECT 
    MONTH(`from`) AS `month`, 
    YEAR(`from`) AS `year`, 
    `from` AS `from`, 
    LAST_DAY(`from`) AS `to`, 
    DATE_FORMAT(`from`, '%M') AS `fullMonth`, 
    DATE_FORMAT(`from`, '%b') AS `shortMonth` 
FROM 
(
    SELECT CONCAT(YEAR(NOW()), '-01-01') AS `from` UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-02-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-03-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-04-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-05-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-06-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-07-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-08-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-09-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-10-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-11-01') UNION ALL 
    SELECT CONCAT(YEAR(NOW()), '-12-01') 
) AS `range`