Comments (6)
我没看明白你描述的需求,你可以给一段你期望的功能的伪代码
目前我们可以帮你映射到struct不需要你自己映射啊
row,err := db.Query(`select user_name,age from user where id>100`)
type User struct {
Name string `ddb:"user_name"`
Age int `ddb:"age"`
}
var students []User
scanner.Scan(rows, &students)
这样就行了
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对,目前就是这样的,我希望没有struct,而是自动返回数据库的字端,目前都是我把数据库的字端变成struct来解析的,感觉这样很麻烦
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//字段
cols, _ := rows.Columns()
比如这个就可以
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这个rows是标准库的rows,db也是标准库的database/sql.DB对象,你可以执行rows.Columns(),没有问题啊
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对,目前就是这样的,我希望没有struct,而是自动返回数据库的字端,目前都是我把数据库的字端变成struct来解析的,感觉这样很麻烦
@zhanghongming 我给的demo代码你还觉得用起来麻烦吗?那你现在的代码是什么样的呢,可以分享下么
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@zhanghongming 你是指的ScanMap吗,比如:
rows, _ := db.Query("select name, age as m_age from person")
result, err := scanner.ScanMap(rows)
for _, record := range result {
fmt.Println(record["name"], record["m_age"])
}
这个功能目前也是支持的
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Related Issues (20)
- builder.BuildSelect where参数传递的map[string]interface{}在生成sql的时候where顺序随机生成,导致生成sql不走索引 HOT 1
- NamedQuery 支持嵌套 map[string]interface{}, 实现过滤条件
- 是否支持MySQL关键词 HOT 2
- scanner.Scan返回错误码 HOT 3
- buildDelete不支持limit操作 HOT 1
- 请问下, BuildInsertOnDuplicate方法支持如下的sql吗? HOT 3
- 支持force index操作吗
- "[scanner]: empty result" HOT 4
- 请问可以支持UNION ALL语句吗? HOT 1
- 支持多个 or 查询 HOT 1
- scanner在go继承模式下,无法scan到父级tag HOT 1
- 请求打个最新版本的tag HOT 1
- mysql传limit句柄错误 HOT 9
- 您好,支持 IS NOT NULL吗?在文档里没有看到 HOT 2
- 对rows进行scan后, 需要检查err
- scan不支持结构体嵌套赋值
- where语句中两列数据相互比较,如何正确声明查询条件呢? HOT 5
- scan 对于继承的struct不生效 HOT 1
- ctx超时或取消情况下,scanner.Scan()方法会把err吞掉,不返回err,导致读出的数据不全
- map[string]interface{} support between ? and ? HOT 2
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