在介绍了大数据测试的主要技术后,给出了面向大数据的测试过程,由于ETL(Extract Transform and Load抽取、转换和加载)测试是数据仓库测试中重要且复杂的阶段,给出了ETL测试的主要类型及ETL自动化测试的优势。通过对员工信息表进行数据...在介绍了大数据测试的主要技术后,给出了面向大数据的测试过程,由于ETL(Extract Transform and Load抽取、转换和加载)测试是数据仓库测试中重要且复杂的阶段,给出了ETL测试的主要类型及ETL自动化测试的优势。通过对员工信息表进行数据填充测试及测试结果分析,说明ETL测试是保证数据质量有效性的重要途径。研究表明合理的搭建测试环境,应用自动化测试技术,可以提高测试效率以降低大数据测试的难度。展开更多
RESIDENTS in downtown Beijing got to experience nature on their doorsteps last July when the first urban forest park in Dongcheng District was opened to the public. The park sits to the northwest of Beijing Workers’ ...RESIDENTS in downtown Beijing got to experience nature on their doorsteps last July when the first urban forest park in Dongcheng District was opened to the public. The park sits to the northwest of Beijing Workers’ Stadium, a popular venue for sports fixtures and pop concerts. Entering the park feels like stepping out of a concrete jungle into the fresh embrace of nature. It boasts towering Chinese scholar trees and junipers as well as a proliferation of wild blossoms attracting butterflies and bees.展开更多
文摘在介绍了大数据测试的主要技术后,给出了面向大数据的测试过程,由于ETL(Extract Transform and Load抽取、转换和加载)测试是数据仓库测试中重要且复杂的阶段,给出了ETL测试的主要类型及ETL自动化测试的优势。通过对员工信息表进行数据填充测试及测试结果分析,说明ETL测试是保证数据质量有效性的重要途径。研究表明合理的搭建测试环境,应用自动化测试技术,可以提高测试效率以降低大数据测试的难度。
文摘RESIDENTS in downtown Beijing got to experience nature on their doorsteps last July when the first urban forest park in Dongcheng District was opened to the public. The park sits to the northwest of Beijing Workers’ Stadium, a popular venue for sports fixtures and pop concerts. Entering the park feels like stepping out of a concrete jungle into the fresh embrace of nature. It boasts towering Chinese scholar trees and junipers as well as a proliferation of wild blossoms attracting butterflies and bees.
