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DataCamp for Business 체험강의 설명
선수 조건
Intermediate SQL Server1
Starting with Cleaning Data
To begin the course, you will learn why cleaning data is important. You will solve simple problems such as leading and trailing spaces in strings, unifying formats for flight registrations, combining strings and more.
2
Dealing with missing data, duplicate data, and different date formats
In this chapter, you will deepen your data cleaning knowledge. You will learn how to deal with missing data, avoid duplicate data in your datasets, and work with different formats of dates.
3
Dealing with out of range values, different data types, and pattern matching
In this chapter, you will deal with out of range values and inaccurate data. You will also practice converting data with different types. Finally, you will work on matching patterns to your data to find outliers.
4
Combining, splitting, and transforming data
In this final chapter, you will learn how to combine and aggregate data of some columns into one, split data of one column into more columns, and transform rows into columns and vice versa.
SQL Server 데이터베이스에서 데이터 정제하기
강의 완료
DataCamp for Mobile을 통해 데이터 분석 능력을 향상시키세요.
모바일 강좌와 매일 5분 코딩 챌린지를 통해 이동 중에도 학습 효과를 높이세요.