3. What is SQL? SQL stands for Structured Query Language , and it is used to communicate with the Database. This is a standard language used to perform tasks such as retrieval, updation, insertion and deletion of data from a database. 7. What is a unique key? A Unique key constraint ...
Another specific SQL interview questions material. In this guide, you will learn about questions asked for the SQL server with detailed answers. The material might be relevant for data engineer and related job roles. CareerGuru99 Resource:Top 24 T-SQL Interview Questions and Answers by CareerGuru...
https://www.guru99.com/pl-sql-tutorials.html PL/SQL http://plsql-tutorial.com/ https://www.tutorialspoint.com/plsql/index.htm https://www.javatpoint.com/pl-sql-tutorial Thanks Raghav comparing SQL data from a single table how can I convert a cursor to an alternative faster query...
AtGuru99, we are committed to providing credible and accurate information.My research on 38+Best Free SQL Database Software tookover 168 hours, ensuring this guide is both thorough and reliable. I reviewed both free and paid options, covering key features, pros, and cons. When selecting the ...
PL/SQL-Interviewfragen für 5+ Jahre Erfahrung Fragen und Antworten zum PL/SQL-Interview für Studienanfänger 1) Was ist PL SQL? Oracle PL/SQL ist eine Erweiterung der SQL-Sprache, die die Datenmanipulationsleistung von SQL mit der Verarbeitungsleistung einer prozeduralen Sprache kombiniert, ...
Mastering the questions in each level on LeetCode is a good way to prepare for technical interviews and keep your skills sharp. They also have a repository of solutions with the reasoning behind each step. LeetCode has over 1,900 questions for you to practice, covering many different ...
11. Mikä on normalisointi? Normalisointi on prosessi redundanssin ja riippuvuuden minimoimiseksi järjestämällä tietokannan kenttiä ja taulukkoa. Normalisoinnin päätavoitteena on lisätä, poistaa tai muokata kenttää, joka voidaan tehdä yhteen taulukkoon. ...
46) Voidaanko hajautetussa tietokantajärjestelmässä suorittaa 2 kyselyä samanaikaisesti? Kyllä, ne voidaan suorittaa samanaikaisesti. Yksi kysely on aina riippumaton toisesta kyselystä hajautetussa tietokantajärjestelmässä, joka perustuu 2-vaiheiseen vahvistukseen. ...
bảng pl/sql trước pl/sql? với một lệnh gọi chương trình duy nhất –“ thủ tục fcopy”, bạn có thể sao chép toàn bộ nội dung của một tệp vào một tệp khác. Để sao chép trực tiếp nội...