import data

基本解釋

You have to import data from an existing Excel file yourself, using Spreadsheet::ParseExcel.
必須自己使用 Spreadsheet::ParseExcel 從現(xiàn)有 Excel 文件導(dǎo)入數(shù)據(jù)。
nodefaults no yes no Specifies that the default value defined on a column is not to be imported if the source column is missing from the input data file. Given import data file tabdata.del
nodefaults no yes no 指定如果輸入數(shù)據(jù)文件中缺少一列，則不導(dǎo)入該列上所定義的默認(rèn)值。
usedefaults no yes yes Specifies that the default value defined on a column is to be imported or loaded if the input data file contains no value for that column. Given import data file tabdata.del
usedefaults no yes yes 指定如果輸入數(shù)據(jù)文件沒(méi)有包含某列的值，就導(dǎo)入或載入該列上所定義的默認(rèn)值。

That is what we do with queries and it is also what we do when we import data.
FORBES: Big Data Meets Online Travel - 20 Billion Offers, One-Second Response Time
They said they saw no obvious irregularities in import data and no reason to inflate the values of goods.
NPR: China Reports Stronger April Trade Growth
You securely import account data to the BillGuard site to access the service, which uses account aggregation by Yodlee.
FORBES: BillGuard Brings In $10 Million, Big Names With Series B Funding