当我meta tableName以前检查类型.get结果如下:
c t f a
`description "C"
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现在我想知道类型"c"和之间的差异"C".以及如何将类型"c"转换为"C".
从下面的解释我可以得到,当表中有"c"类型时,我可以将其转换为"C"类型.我的新问题如下:表1:
([ID:`1`2`3]Name:`A`B`C;Client:`P`Q`S;Species:`setosa`setosa`setosa ;Length:2 34 6)
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显示如下:
ID Name Client Species Length
1 A B setosa 2
2 B Q setosa 34
3 C S setosa 6
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我想为table1写一个简单的api:
.get.table1:{[Params]
if[Params~();Params:()!()];
select ID:ID,NAME:Name,CLIENT:Client,SPECIES:Species,LENGTH:Length,DESCRIP:count[i]#enlist "" from table1
}
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结果:.get.table1[]
ID NAME CLIENT SPECIES LENGTH DESCRIP
1 A B setosa 2 ""
2 B Q setosa 34 ""
3 C S setosa 6 "" …Run Code Online (Sandbox Code Playgroud) kdb ×1