Question

我想将数据搜索到表

我的表结构是表：tbl_clientinfo_dplist

private static final int LIMIT = 255;
private static final int SHIFT = 256; // or whatever > LIMIT, e.g. 1000

public float colorToHeight(Color c){
    int b = (int) Math.round(c.getBlue() * LIMIT);
    int r = (int) Math.round(c.getRed() * LIMIT);
    float h = (b + r * SHIFT) / 2f;
    h -= 10000;
    return h;
}

public Color heightToColor(float h){
    h += 10000;
    h *= 2;         
    double r = (int) (h / SHIFT);
    double b = h - (r * SHIFT);
    return new Color(r / LIMIT, 0, b / LIMIT, 1f);
}

我的另一个表结构是表：tbl_client

dplist_id    dp_id     dplist
-------------------------------
1             1        aaa
2             1        bbb
3             1        ccc
4             1        ddd
5             2        eee
6             2        fff
7             2        ggg

dp_id = 1是提供者类型，dp_id = 2是组名。

如何从表中搜索提供者类型或组名？

这是我当前的查询

client_id      provider_type     group_name      cmp_legal_name
---------------------------------------------------------------
   1              1                 5                  Test1
   2              2                 6                  Test2
   3              3                 7                  Test3
   4              1                 5                  Test4
   5              4                 6                  Test5

Answer 1

仅供参考，以上内容可以改写如下，我认为更容易理解......

SELECT columns, I, actually, need
  FROM tbl_client c
  LEFT 
  JOIN tbl_clientinfo_dplist l
    ON l.dplist_id IN(c.provider_type,c.group_name)

MySQL OR条件不起作用

1 个答案: