SQL Study guides, Class notes & Summaries

Een database of databank is een digitale verzameling van gegevens of data. Het is een soort bestand waarin gegevens geplaatst en met elkaar verbonden worden. Dit is een samenvatting van het vak databanken. Hierin leer je wat een database is en hoe je de gegevens hierin moet toevoegen, wijzigen of verwijderen aan de hand van SQL

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Data Analytics using Spark SQL Assignment1 (20pts) Related: Section 3 Write and run a Spark command (not SQL query) to show the date when # of deaths was severe (more than 800 deaths), as well as # of confirmed cases, # of deaths, and country using the filter function. The output should be like the one below. +--------+-----+------+-----------------------+ | dateRep|cases|deaths|countriesAndTerritories| +--------+-----+------+-----------------------+ Note: Write commands/queries for all ...

SSRS (SQL Server Reporting Services) correct answers Only memorize the top portion of this information. - Read and write complex queries - Created database objects (tables, views, stored procedures) - Modified existing reporting content - SQL Server Data Tools (SSDT) | Use the SSDT Transact-SQL design capabilities to build, debug, maintain, and refractor databases. SSRS Architecture Examples: The important components of SSRS architecture are Report Builder Report Designer Rep...

Data Engineering Associate with Databricks Questions and Answers 100% Pass What is done with the control plane? web application notebooks jobs cluster management What is done with the data plane? spinning up clusters data processing accessing data sources SQL: Create table with specific columns CREATE TABLE students (id INT, name STRING) SQL: Insert data INSERT INTO students VALUES (1, "Omar") Does ACID guarantee inserting many records in a single transaction? Yes ...

WGU C170 Pre- Assessment (New 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Graded A QUESTION Which command creates a database only if it does not already exist? Answer: CREATE DATABASE IF NOT EXISTS db_name ; QUESTION Refer to the given SQL statement. SELECT PRODNUM, PRODNAME FROM PRODUCT Which line should be added to the end of the statement to return the product numbers and product names for products that cost 20 dollars? Answer:...

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