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                            ## mysql數據庫：屬于關系型數據庫，通過字段名與多個表建立關系

**數據庫語言**
- DQL(Data Query Language)		數據查詢語言(select,使用頻率最高)
- DML(Data Manipulate Language)	數據操作語言(insert,update,delete)
- DDL(Data Define Languge)		數據定義語言(create,drop,alter)
- TCL(Transaction Control Language)事務控制語言(rollback,commit)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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