{"id":491,"date":"2026-05-06T10:10:20","date_gmt":"2026-05-06T01:10:20","guid":{"rendered":"https:\/\/www.zeronana.net\/?p=491"},"modified":"2026-05-06T15:40:43","modified_gmt":"2026-05-06T06:40:43","slug":"%e3%80%90%e5%88%9d%e5%bf%83%e8%80%85%e5%90%91%e3%81%91%e3%80%91go-mysql%e6%8e%a5%e7%b6%9a%e3%81%ae%e6%96%b9%e6%b3%95%ef%bd%9cdatabase-sql%e3%81%a7%e5%a7%8b%e3%82%81%e3%82%8bdb%e9%96%8b%e7%99%ba","status":"publish","type":"post","link":"https:\/\/www.zeronana.net\/?p=491","title":{"rendered":"\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011Go MySQL\u63a5\u7d9a\u306e\u65b9\u6cd5\uff5cdatabase\/sql\u3067\u59cb\u3081\u308bDB\u958b\u767a\u5165\u9580"},"content":{"rendered":"\n

Go \u3068 MySQL \u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u9ad8\u901f\u306aWeb\u30a2\u30d7\u30ea\u3084API\u3092\u958b\u767a\u3067\u304d\u307e\u3059\u3002
Go\u3067\u306f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea database\/sql<\/code> \u3092\u4f7f\u3063\u3066MySQL\u3078\u63a5\u7d9a\u3059\u308b\u306e\u304c\u57fa\u672c\u3067\u3059\u3002<\/p>\n\n\n\n

\u672c\u8a18\u4e8b\u3067\u306f\u3001Go\u3067MySQL\u3078\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3092\u300c\u5c0e\u5165\u30fbSQL\u5b9f\u884c\u30fb\u5b9f\u52d9\u3067\u306e\u30dd\u30a4\u30f3\u30c8\u300d\u307e\u3067\u521d\u5fc3\u8005\u5411\u3051\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

Go\u3067MySQL\u63a5\u7d9a\u3059\u308b\u6d41\u308c<\/h2>\n\n\n\n

\u57fa\u672c\u306e\u6d41\u308c\ud83d\udc47<\/p>\n\n\n\n

    \n
  1. \u30c9\u30e9\u30a4\u30d0\u5c0e\u5165<\/li>\n\n\n\n
  2. DB\u63a5\u7d9a<\/li>\n\n\n\n
  3. Ping\u78ba\u8a8d<\/li>\n\n\n\n
  4. SQL\u5b9f\u884c<\/li>\n\n\n\n
  5. Close\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    MySQL\u30c9\u30e9\u30a4\u30d0\u3092\u5c0e\u5165<\/h2>\n\n\n\n
    go get github.com\/go-sql-driver\/mysql<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u57fa\u672c\u306e\u63a5\u7d9a\u30b3\u30fc\u30c9<\/h2>\n\n\n\n
    package main

    import (
        \"database\/sql\"
        \"log\"

        _ \"github.com\/go-sql-driver\/mysql\"
    )

    func main() {

        db, err := sql.Open(
            \"mysql\",
            \"user:password@tcp(localhost:3306)\/sample\",
        )

        if err != nil {
            log.Fatal(err)
        }

        defer db.Close()

        err = db.Ping()

        if err != nil {
            log.Fatal(err)
        }

        log.Println(\"\u63a5\u7d9a\u6210\u529f\")
    }<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    SELECT\u5b9f\u884c<\/h2>\n\n\n\n
    rows, err := db.Query(
        \"SELECT id, name FROM users\",
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    INSERT\u5b9f\u884c<\/h2>\n\n\n\n
    _, err := db.Exec(
        \"INSERT INTO users(name) VALUES(?)\",
        \"Tomoya\",
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    UPDATE\u5b9f\u884c<\/h2>\n\n\n\n
    _, err := db.Exec(
        \"UPDATE users SET name=? WHERE id=?\",
        \"Taro\",
        1,
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    DELETE\u5b9f\u884c<\/h2>\n\n\n\n
    _, err := db.Exec(
        \"DELETE FROM users WHERE id=?\",
        1,
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u5b9f\u52d9\u3067\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n
    \u2714 defer Close<\/h3>\n\n\n\n
    defer db.Close()<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u2714 SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56<\/h3>\n\n\n\n
    db.Query(
        \"SELECT * FROM users WHERE id=?\",
        id,
    )<\/code><\/pre>\n\n\n\n
    \ud83d\udc49 \u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u5229\u7528<\/p>\n\n\n\n
    \n\n\n\n
    \u2714 \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u7ba1\u7406<\/h3>\n\n\n\n
    db.SetMaxOpenConns(10)<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    ORM\uff08GORM\uff09\u3068\u306e\u9055\u3044<\/h2>\n\n\n\n
    GORM<\/p>\n\n\n\n
    \u9805\u76ee<\/th>SQL<\/th>ORM<\/th><\/tr><\/thead>
    \u67d4\u8edf\u6027<\/td>\u9ad8<\/td>\u4e2d<\/td><\/tr>
    \u5b66\u7fd2\u30b3\u30b9\u30c8<\/td>\u4e2d<\/td>\u4f4e<\/td><\/tr>
    \u5b9f\u52d9\u6027\u80fd<\/td>\u9ad8<\/td>\u9ad8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \n\n\n\n
    \u5b9f\u52d9\u3067\u306e\u5fdc\u7528<\/h2>\n\n\n\n
      \n
    • API\u958b\u767a<\/li>\n\n\n\n
    • \u7ba1\u7406\u753b\u9762<\/li>\n\n\n\n
    • EC\u30b5\u30a4\u30c8<\/li>\n\n\n\n
    • SaaS\u958b\u767a<\/li>\n<\/ul>\n\n\n\n
      <\/p>\n\n\n\n
      \n\n\n\n
      \u3088\u304f\u3042\u308b\u5931\u6557<\/h2>\n\n\n\n
      \u274c Close\u5fd8\u308c
      \u274c SQL\u76f4\u66f8\u304d\u4e71\u7acb
      \u274c \u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u4e0d\u8db3<\/p>\n\n\n\n
      \n\n\n\n
      \u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n
        \n
      • Ping\u78ba\u8a8d<\/li>\n\n\n\n
      • Prepare\u5229\u7528<\/li>\n\n\n\n
      • Connection Pool\u7ba1\u7406<\/li>\n\n\n\n
      • ORM\u3068\u306e\u4f7f\u3044\u5206\u3051<\/li>\n<\/ul>\n\n\n\n
        \n\n\n\n
        \ud83d\udca1 \u7d50\u8ad6<\/h2>\n\n\n\n
        \ud83d\udc49
        \u300cGo\u00d7MySQL\u306f\u9ad8\u901f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u958b\u767a\u306e\u738b\u9053\u69cb\u6210\u300d<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
        Go \u3068 MySQL \u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u9ad8\u901f\u306aWeb\u30a2\u30d7\u30ea\u3084API\u3092\u958b\u767a\u3067\u304d\u307e\u3059\u3002Go\u3067\u306f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea database\/sql \u3092\u4f7f […]<\/p>\n","protected":false},"author":1,"featured_media":492,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[6,7],"class_list":["post-491","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-go","tag-go-2","tag-go"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.zeronana.net\/wp-content\/uploads\/2026\/05\/gomysql.png","_links":{"self":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=491"}],"version-history":[{"count":1,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":493,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions\/493"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/media\/492"}],"wp:attachment":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}