可以用字符串拼接的方式实现
用sql()函数生成，sql — DolphinDB 2.0 documentation
n=100;
t=table(2020.01.01 + 0..(n-1) as timestamp, rand(`IBM`MS`APPL`AMZN,n) as symbol, rand(10.0, n) as value)
d = 2020.01.01
sql(sqlCol("*"), t, <timestamp=d>).eval()
可以用字符串拼接的方式实现
用sql()函数生成，sql — DolphinDB 2.0 documentation
n=100;
t=table(2020.01.01 + 0..(n-1) as timestamp, rand(`IBM`MS`APPL`AMZN,n) as symbol, rand(10.0, n) as value)
d = 2020.01.01
sql(sqlCol("*"), t, <timestamp=d>).eval()