{"id":488,"date":"2026-05-06T10:05:40","date_gmt":"2026-05-06T01:05:40","guid":{"rendered":"https:\/\/www.zeronana.net\/?p=488"},"modified":"2026-05-06T15:40:54","modified_gmt":"2026-05-06T06:40:54","slug":"%e3%80%90%e5%ae%9f%e5%8b%99%e5%90%91%e3%81%91%e3%80%91go-db%e6%8e%a5%e7%b6%9a%e3%81%ae%e6%96%b9%e6%b3%95%ef%bd%9cmysql%e3%83%bbpostgresql%e5%af%be%e5%bf%9c%e3%81%ae%e9%96%8b%e7%99%ba%e5%85%a5%e9%96%80","status":"publish","type":"post","link":"https:\/\/www.zeronana.net\/?p=488","title":{"rendered":"\u3010\u5b9f\u52d9\u5411\u3051\u3011Go DB\u63a5\u7d9a\u306e\u65b9\u6cd5\uff5cMySQL\u30fbPostgreSQL\u5bfe\u5fdc\u306e\u958b\u767a\u5165\u9580"},"content":{"rendered":"\n

Go\u8a00\u8a9e\u3067Web\u958b\u767a\u3084API\u958b\u767a\u3092\u884c\u3046\u969b\u3001\u5fc5\u9808\u306b\u306a\u308b\u306e\u304c\u300c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u300d\u3067\u3059\u3002
\u7279\u306b MySQL \u3084 PostgreSQL \u306f\u3001\u5b9f\u52d9\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u672c\u8a18\u4e8b\u3067\u306f\u3001Go\u3067MySQL\u30fbPostgreSQL\u3078\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3092\u300c\u57fa\u672c\u301c\u5b9f\u52d9\u30ec\u30d9\u30eb\u300d\u307e\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

Go\u3067DB\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. SQL\u5b9f\u884c<\/li>\n\n\n\n
  4. \u7d50\u679c\u53d6\u5f97<\/li>\n\n\n\n
  5. Close\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    MySQL\u63a5\u7d9a\u65b9\u6cd5<\/h2>\n\n\n\n

    \u30c9\u30e9\u30a4\u30d0\u5c0e\u5165<\/h3>\n\n\n\n
    go get github.com\/go-sql-driver\/mysql<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u63a5\u7d9a\u30b3\u30fc\u30c9<\/h3>\n\n\n\n
    import (
        \"database\/sql\"
        _ \"github.com\/go-sql-driver\/mysql\"
    )

    db, err := sql.Open(
        \"mysql\",
        \"user:password@tcp(localhost:3306)\/sample\",
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    PostgreSQL\u63a5\u7d9a\u65b9\u6cd5<\/h2>\n\n\n\n
    \u30c9\u30e9\u30a4\u30d0\u5c0e\u5165<\/h3>\n\n\n\n
    go get github.com\/lib\/pq<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u63a5\u7d9a\u30b3\u30fc\u30c9<\/h3>\n\n\n\n
    import (
        \"database\/sql\"
        _ \"github.com\/lib\/pq\"
    )

    db, err := sql.Open(
        \"postgres\",
        \"host=localhost port=5432 user=postgres password=pass dbname=sample sslmode=disable\",
    )<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \u63a5\u7d9a\u78ba\u8a8d\uff08Ping\uff09<\/h2>\n\n\n\n
    err = db.Ping()

    if err != nil {
        panic(err)
    }<\/code><\/pre>\n\n\n\n
    \ud83d\udc49 \u5b9f\u52d9\u3067\u306f\u5fc5\u9808<\/p>\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
    \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 \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30eb<\/h3>\n\n\n\n
    db.SetMaxOpenConns(10)<\/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
    \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>
    \u5b66\u7fd2\u30b3\u30b9\u30c8<\/td>\u4e2d<\/td>\u4f4e<\/td><\/tr>
    \u67d4\u8edf\u6027<\/td>\u9ad8<\/td>\u4e2d<\/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 \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u672a\u5bfe\u5fdc<\/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
      • \u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u7ba1\u7406<\/li>\n\n\n\n
      • ORM\u4f75\u7528\u691c\u8a0e<\/li>\n<\/ul>\n\n\n\n
        \n\n\n\n
        \ud83d\udca1 \u7d50\u8ad6<\/h2>\n\n\n\n
        \ud83d\udc49
        \u300cDB\u8a2d\u8a08\u3068\u63a5\u7d9a\u54c1\u8cea\u304c\u30b7\u30b9\u30c6\u30e0\u54c1\u8cea\u3092\u6c7a\u3081\u308b\u300d<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
        Go\u8a00\u8a9e\u3067Web\u958b\u767a\u3084API\u958b\u767a\u3092\u884c\u3046\u969b\u3001\u5fc5\u9808\u306b\u306a\u308b\u306e\u304c\u300c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u300d\u3067\u3059\u3002\u7279\u306b MySQL \u3084 PostgreSQL \u306f\u3001\u5b9f\u52d9\u3067\u5e83\u304f […]<\/p>\n","protected":false},"author":1,"featured_media":489,"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-488","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\/Go-DB.png","_links":{"self":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/488","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=488"}],"version-history":[{"count":1,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/488\/revisions"}],"predecessor-version":[{"id":490,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/posts\/488\/revisions\/490"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=\/wp\/v2\/media\/489"}],"wp:attachment":[{"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeronana.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}