使用元编程方式,动态传入、解析列名Vector。
示例代码如下:
t = table(1 as Volume1, 2 as Volume2, 3 as Volume3, 4 as Volume4, 5 as Volume5, 6 as Volume6, 7 as Volume7, 8 as Volume8, 9 as Volume9, 10 as Volume10) sql(select=sqlCol("Volume" + string(1..10)), from=t).eval()
使用元编程方式,动态传入、解析列名Vector。
示例代码如下:
t = table(1 as Volume1, 2 as Volume2, 3 as Volume3, 4 as Volume4, 5 as Volume5, 6 as Volume6, 7 as Volume7, 8 as Volume8, 9 as Volume9, 10 as Volume10) sql(select=sqlCol("Volume" + string(1..10)), from=t).eval()