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Mysql Data Sheet logging operations

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   1Add Record:Insert [ into]Tab_name (Field1,field2 ...)Values( values1,values2 ...), (Values1,values2 ...),                 ...                                                                                                                                              ； InsertTab_nameSetField=Value, field=value,..... ;2Modify a recordUpdateTab_nameSetField=Valuewhereclauses3To delete a table record:Delete  fromTab_namewhereclause clears the table record:1  Delete  fromTab_name2  truncateTab_name (Recommended when data volume is large)4Query table Records (******)Select  *  fromtab_name: Displays all field information for all recordsSelect [distinct]Filed,filed2,..... fromTab_namewhereclausesGroup  byGroupKey: Grouping conditions havingclauses: FilteringOrder  bylimit queries the average wage for each provinceSelectCityavg(Salary) fromEmpGroup  byCity ; Name of the province that queries the average wage greater than 8000SelectCityavg(Salary) fromEmpGroup  byCity having avg(Salary)> 8000

Mysql Data Sheet logging operations

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Related Keywords:
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