Question

我想为select语句中的每个重复行分配一个唯一的数字。

表名称|位置
马克沃尔1 马克沃尔1 MArtha 1 玛莎1

我想要这个

1 Mark Wl 1 2 Martha 1

Answer 1

您可以根据需要使用尽可能少的行。如果要使用所有行，请将它们全部列出。

SELECT Row1, Row2, Row3, 
    ROW_NUMBER() OVER (
        PARTITION BY Row1, Row2, Row3, 
        ORDER BY Row1
    )
FROM Table

Answer 2

最好的解决方案是每个记录都有一个唯一的ID，然后你选择显示它（这将来自第一个找到的记录）......

ggplotcmd <- ggplot(data_geno, aes(x=x_pos, y=-log10(p), color=chr)) + 
    scale_x_continuous(breaks = last_bp_vec,minor_breaks=NULL,labels=seq(26)) + 
    geom_hline(aes(yintercept=-log10(5e-08))) + 
    geom_point(shape=20, size = 1) + 
    geom_point(data=data_imp,color="black",shape=4) + 
    xlab("") + 
    theme(axis.text.x = element_text(hjust=0)) +  
    scale_color_manual(values=c("deeppink2", "orange", "green2", "blue", "yellow", 
        "purple",  "magenta", "darkgreen", "gold", "firebrick", "yellowgreen", "red", 
        "black", "turquoise3", "tomato", "darkblue", "chocolate", "violet", "slategray4", 
        "OrangeRed", "darkblue", "deeppink", "aquamarine3", "steelblue1", "mediumorchid", 
        "yellowgreen")) + 
    ggtitle(man_title)

如何计算SQL Server 2012中的重复行？

2 个答案: