Namastey All,
Welcome to Select Star. Today I am solving a medium level interview question.
We have been provided a table shop and we are required to replace NULL Values in it with last non null value.
Topics covered :
1. Window Function SUM (RUNNING SUM)
2. Requirement of PRIMARY KEY
3. CASE WHEN inside SUM
4. SELF JOIN
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• Basic SQL Course
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3. SQL Mediun to Hard Level Interview Questions :
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If you want me to solve some specific questions, then email me :
ananttnegii@gmail.com
Script for table creation :
create table shop (product varchar(50));
insert into shop values ('Table'),(null),(null),('Chair'),(null),('Sofa'),(null),(null),(null),(null);
select * from shop;
Happy Querying
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En esta página del sitio puede ver el video en línea Replacing NULL Values | SQL Intermediate Level Question de Duración hora minuto segunda en buena calidad , que subió el usuario Select Star 07 agosto 2024, comparta el enlace con amigos y conocidos, en youtube este video ya ha sido visto 786 veces y le gustó 33 a los espectadores. Disfruta viendo!