Updating a sql table from excel dating normala

When data is filtered, only rows that meet the filter criteria is displayed while other rows get hidden.Also, we can apply multiple criterion to filter data.Not only it is useful, but it allows you to extract the hidden insights from data.

In SQL, we have similar functionality known as JOIN.

We have seen methods to remove records, we can also add records to SQL table as we do in excel. Syntax: In excel, we can create a column, based on existing column using functions or operators. Create a new column City_Code which has first three characters of City.

For more details on SQL functions, I would recommend you to refer this link.

SQL JOIN is used to combine rows from two or more tables, based on a common field between them.

It has multiple types: Exercise: Below is city category table “City_Cat”, now I want to map city category to Employee table and show all records of Employee table.

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