Change Password

Please enter the password.
Please enter the password. Between 8-64 characters. Not identical to your email address. Contain at least 3 of uppercase, lowercase, numbers, and special characters (such as @*&#).
Please enter the password.
Submit

Change Nickname

Current Nickname:
Submit

v4.2
Search
中文EN
v4.2

    sum()

    Function sum() sums up a column of numbers, or concatenates a column of string. Only one row from the data stream will be kept after this function is called, and all the rest rows will be abandoned.

    Arguments:

    • Number or string <number | string>, auto-abstraction: UUID of NODE/EDGE, row index (starting from 0) of PATH/TABLE, or the first element of ARRAY

    Returns:

    • Sum or new string <number | string>

    ATTR (Numeric value)

    Example: find the outbound 1-step transfer paths from Card CA001, return the sum of the transfer amounts

    n({_id == "CA001"}).re({@transfer} as pay).n({@card})
    return sum(pay.amount)
    

    ATTR (String)

    Example: find the outbound 1-step transfer paths from Card CA001, return the strings converted from payee cards' IDs

    n({_id == "CA001"}).re({@transfer}).n({@card} as payee)
    return sum(payee._id)
    
    Please complete the following information to download this book
    *
    公司名称不能为空
    *
    公司邮箱必须填写
    *
    你的名字必须填写
    *
    你的电话必须填写
    *
    你的电话必须填写