Course Introduction

MySQL-row to column scenario introduction

MySQL-Requirements Analysis

MySQL-use the self-join method to convert rows to columns

MySQL-use CASE method to convert rows to columns

MySQL-Single column to multiple rows scenario introduction

MySQL-use the method of serializing tables to convert rows to columns

MySQL-use UNION method to convert columns to rows

MySQL-use serialized table method to achieve column conversion

MySQL-common method for unique serial numbers in databases

How to use SQL statements to create serial numbers for special needs

MySQL-Use primary key to delete duplicate data

MySQL - How to handle complex deduplication