{"id":1768,"date":"2022-08-16T17:02:44","date_gmt":"2022-08-16T08:02:44","guid":{"rendered":"https:\/\/www.miracleave.co.jp\/contents\/?p=1768"},"modified":"2023-05-22T11:12:30","modified_gmt":"2023-05-22T02:12:30","slug":"go-sqlx","status":"publish","type":"post","link":"https:\/\/www.miracleave.co.jp\/contents\/1768\/go-sqlx\/","title":{"rendered":"GO\u306e\u30c7\u30fc\u30bf\u64cd\u4f5c\u306b\u4fbf\u5229\u306asqlx"},"content":{"rendered":"\n

\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n

\u3053\u3093\u306b\u3061\u306f\uff01\u9752\u67f3\u3068\u7533\u3057\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u6700\u8fd1Go\u3092\u4f7f\u3046\u3053\u3068\u304c\u591a\u304f\u306a\u3063\u3066\u304d\u3066\u3044\u3066\u3001\u305d\u306e\u4e2d\u3067\u30c7\u30fc\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u3068\u304d\u306b\u4fbf\u5229\u3060\u3063\u305fsqlx\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u3044\u308d\u3044\u308d\u6a5f\u80fd\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u4e3b\u306bStruct\u306b\u30c7\u30fc\u30bf\u3092\u7a4d\u3081\u308bScan\u306e\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u3057\u307e\u3059\uff01<\/p>\n\n\n\n

sqlx\u3068\u306f<\/h2>\n\n\n\n

Go\u3067\u3088\u304f\u4f7f\u7528\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u3057\u3066\u306fdatabase\/sql\u3068\u3044\u3046\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u3053\u3061\u3089\u3067\u3082\u554f\u984c\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u305f\u3042\u3068\u3001\u69cb\u9020\u4f53\u306b\u305d\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u8fd4\u3059\u3068\u304d\u3001\u4e0d\u4fbf\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u308c\u3089\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u304f\u308c\u308b\u306e\u304csqlx\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002\u3053\u3061\u3089\u306fdatabase\/sql\u306e\u62e1\u5f35\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

https:\/\/pkg.go.dev\/database\/sql<\/a><\/p>\n\n\n\n

https:\/\/pkg.go.dev\/github.com\/jmoiron\/sqlx<\/a><\/p>\n\n\n\n

sql\u3067\u5b9f\u88c5\u3057\u305f\u5834\u5408<\/h2>\n\n\n\n
package main\n\nimport (\n    "fmt"\n    "log"\n\n    _ "github.com\/go-sql-driver\/mysql"\n    "database\/sql"\n)\n\n\/\/ Struct\u3092\u7528\u610f\ntype User struct {\n    ID        int      `json: "id"`\n    Name string `json: "name"`\n    Email  int       `json: "age"`\n    Tel      string `json: "tel"`\n}\n\nfunc main() {\n\n    \/\/DB\u306b\u63a5\u7d9a\u3059\u308b\n    db, err := sql.Open("mysql", "root\/sample")\n\n    if err != nil {\n        defer db.Close()\n        log.Fatal(err)\n    }\n\n    \/\/ SQL\u5b9f\u884c\n    rows, err := db.Query("SELECT id, name, email, tel FROM users")\n    if err != nil {\n        log.Fatal(err)\n    }\n\n    defer rows.Close()\n\n    results := make([]User, 0)\n    for rows.Next() {\n\n        var user User\n\n        err := rows.Scan(\n            &user.ID,\n            &user.Name,\n            &user.Email,\n            &user.Tel\n        )\n\n        if err != nil {\n            log.Fatal(err)\n        }\n\n        results = append(results, user)\n    }\n\n    fmt.Println(results)\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u7279\u306b\u6ce8\u76ee\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u306e\u306f<\/p>\n\n\n\n
  err := rows.Scan(\n            &user.ID,\n            &user.Name,\n            &user.Email,\n            &user.Tel\n        )<\/code><\/pre><\/div>\n\n\n\n
\u306e\u90e8\u5206\u3067\u3059\u3002sql\u306eScan\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u7279\u6027\u3092\u6301\u3061\u307e\u3059\u3002<\/p>\n\n\n\n
    \n
  • \u30c7\u30fc\u30bf\u3068\u540c\u3058\u500b\u6570\u306e\u5f15\u6570\u304c\u5fc5\u8981<\/li>\n\n\n\n
  • \u30c7\u30fc\u30bf\u306e\u5f53\u3066\u306f\u3081\u306f\u9806\u756a\u306b\u4f9d\u5b58\u3059\u308b\u3002\uff08\u4f8b\u3048\u3070\u3001\u4e0a\u8a18SQL\u306eSELECT\u53e5\u304cid, name, email, tel\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001Scan\u306e\u5f15\u6570\u306e\u9806\u756a\u3082\u5fc5\u305a\u3001\u4e0a\u8a18\u306e\u901a\u308a\u3058\u3083\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002&user.Name\u3001&user.ID\u3001\u3001\u3001\u306e\u3088\u3046\u306b\u9806\u756a\u3092\u5165\u308c\u66ff\u3048\u308b\u3068\u30a8\u30e9\u30fc\u307e\u305f\u306f\u9069\u5207\u306b\u5024\u3092\u53d6\u5f97\u3067\u304d\u306a\u3044\uff09<\/li>\n<\/ul>\n\n\n\n
    \u305d\u306e\u305f\u3081\u3001<\/p>\n\n\n\n
      \n
    • \u30c7\u30fc\u30bf\u304c\u5897\u3048\u305f\u3068\u304d\u3001\u305d\u306e\u5206Scan\u306e\u5f15\u6570\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u5197\u9577\u306b\u306a\u308a\u3084\u3059\u3044\u3002<\/li>\n\n\n\n
    • \u52d5\u7684\u306b\u30c7\u30fc\u30bf\u306e\u500b\u6570\u304c\u5909\u308f\u308b\u5834\u5408\u3001\u305d\u308c\u306b\u5408\u308f\u305b\u305fScan\u3092\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\uff08\u30c7\u30fc\u30bf\u500b\u6570\u304c3\u3064\u306e\u5834\u5408\u306f\u5f15\u6570\u304c3\u500b\u306eScan\u300110\u500b\u306e\u5834\u5408\u306f\u5f15\u6570\u304c10\u500b\u306eScan\u3092\u7528\u610f\u3059\u308b\uff09<\/li>\n\n\n\n
    • \u9806\u756a\u304c\u4e0d\u6b63\u3067\u3082Struct\u306e\u578b\u304c\u540c\u3058\u3060\u3068\u30a8\u30e9\u30fc\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u30d0\u30b0\u306b\u306a\u308a\u3084\u3059\u3044\u3002<\/li>\n<\/ul>\n\n\n\n
      \u3068\u3044\u3046\u5f31\u70b9\u3092\u6301\u3061\u307e\u3059\u3002\u3053\u308c\u3092\u89e3\u6c7a\u3057\u3066\u304f\u308c\u308b\u306e\u304csqlx\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002<\/p>\n\n\n\n
      sqlx\u3067\u5b9f\u88c5\u3057\u305f\u5834\u5408<\/h2>\n\n\n\n
      \u4e0a\u8a18\u306esql\u3092\u4f7f\u7528\u3057\u3066\u66f8\u3044\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092sqlx\u3067\u66f8\u304d\u76f4\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
      package main\n\nimport (\n    "fmt"\n    "log"\n\n    _ "github.com\/go-sql-driver\/mysql"\n    "github.com\/jmoiron\/sqlx"\n)\n\n\/\/ Struct\u3092\u7528\u610f\ntype User struct {\n    ID        int      `db: "id" json: "id"`\n    Name string `db: "name" json: "name"`\n    Email  int       `db: "age" json: "age"`\n    Tel      string `db: "tel" json: "tel"`\n}\n\nfunc main() {\n\n    \/\/DB\u306b\u63a5\u7d9a\u3059\u308b\n    db, err := sqlx.Open("mysql", "root\/sample")\n\n    if err != nil {\n        defer db.Close()\n        log.Fatal(err)\n    }\n\n    \/\/ SQL\u5b9f\u884c\n    rows, err := db.Queryx("SELECT id, name, email, tel FROM users")\n    if err != nil {\n        log.Fatal(err)\n    }\n\n    defer rows.Close()\n\n    results := make([]User, 0)\n    for rows.Next() {\n\n        var user User\n\n        err := rows.StructScan(&user)\n\n        if err != nil {\n            log.Fatal(err)\n        }\n\n        results = append(results, user)\n    }\n\n    fmt.Println(results)\n\n}<\/code><\/pre><\/div>\n\n\n\n
      \u5909\u66f4\u70b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
      “github.com\/jmoiron\/sqlx”\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8aad\u307f\u8fbc\u3080\u305f\u3081\u306b\u5fc5\u8981\u306a\u306e\u3067\u8a18\u8f09\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
      type User struct {\n    ID        int      `db: "id" json: "id"`\n    Name string `db: "name" json: "name"`\n    Email  int       `db: "age" json: "age"`\n    Tel      string `db: "tel" json: "tel"`\n}<\/code><\/pre><\/div>\n\n\n\n
      Struct\u90e8\u5206\u306fjson: “id”<\/span>\u304b\u3089db: “id” json: “id”<\/span>\u306e\u3088\u3046\u306b\u5909\u66f4\u3057\u307e\u3059\u3002db:<\/span>\u3068\u3059\u308b\u3053\u3068\u3067sqlx\u306eStructScan\u304cStruct\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
      \u307e\u305f\u3001json: “id”<\/span>\u3092\u6b8b\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306ekey\u3092ID<\/span>\u3067\u306f\u306a\u304fid<\/span>\u3067\u8fd4\u3057\u305f\u3044\u304b\u3089\u3067\u3059\u3002ID        int      `db: “id”`<\/span>\u3068\u3057\u3066\u3082\u6a5f\u80fd\u3059\u308b\u306e\u3067\u3059\u304c\u3001\u3053\u306e\u5834\u5408\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u304c<\/p>\n\n\n\n
      {\n  ID: 1\n}<\/code><\/pre><\/div>\n\n\n\n
      \u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3082\u3057\u3001<\/p>\n\n\n\n
      {\n id: 1\n}<\/code><\/pre><\/div>\n\n\n\n
      \u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ab\u30e9\u30e0\u3068\u540c\u3058\u5f62\u3067\u8fd4\u3057\u305f\u3044\u5834\u5408\u306fdb: “id” json: “id”<\/span>\u306e\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306f\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u8981\u4ef6\u306b\u3088\u308b\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u90fd\u5ea6\u691c\u8a0e\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
      rows, err := db.Queryx("SELECT id, name, email, tel FROM users")<\/code><\/pre><\/div>\n\n\n\n
      sql\u3092\u4f7f\u7528\u3057\u3066\u3044\u305f\u3068\u304d\u306fQuery<\/span>\u3067\u3057\u305f\u304c\u3001sqlx\u3067\u306fQueryx<\/span>\u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4ed6\u306b\u3082\u591a\u6570\u72ec\u81ea\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u8a73\u3057\u304f\u306f\u4e0a\u8a18\u30ea\u30f3\u30af\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
      err := rows.StructScan(&user)<\/code><\/pre><\/div>\n\n\n\n
      \u6700\u5f8c\u306bStruct\u3078\u30c7\u30fc\u30bf\u3092\u5f53\u3066\u306f\u3081\u308bScan\u3067\u3059\u304c\u4e0a\u8a18\u306e\u3088\u3046\u306bStructScan\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u969b\u3001sql\u3067\u306f\u30c7\u30fc\u30bf\u306e\u6570\u3060\u3051\u5f15\u6570\u306b&struct.\u30d7\u30ed\u30d1\u30c6\u30a3<\/span>\u3092\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001sqlx\u306eStructScan\u3067\u306fStruct\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u6e21\u3059\u3060\u3051\u3067\u5b8c\u7d50\u3057\u307e\u3059\u3002\u3053\u308c\u3067\u81ea\u52d5\u7684\u306b\u30c7\u30fc\u30bf\u3092\u6295\u5165\u3057\u3066\u304f\u308c\u308b\u306e\u3067\u3001\u52d5\u7684\u306b\u30c7\u30fc\u30bf\u306e\u500b\u6570\u304c\u5909\u308f\u308b\u5834\u5408\u3082\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3057\u3001\u9806\u756a\u3092\u6c17\u306b\u3059\u308b\u5fc5\u8981\u6027\u3082\u306a\u304f\u3066\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n
      \u307e\u3068\u3081<\/h2>\n\n\n\n
      \u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3057\u3066\u3082\u554f\u984c\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u62e1\u5f35\u3055\u308c\u305fsqlx\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5f31\u70b9\u3092\u88dc\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u62e1\u5f35\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u306e\u3067\uff08\u3042\u307e\u308a\u304a\u52e7\u3081\u3057\u307e\u305b\u3093\u304c\uff09sql\u3068sqlx\u3092\u540c\u6642\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n
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      \u8aad\u3093\u3067\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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