Explain normalization with example (1NF, 2NF, 3NF)
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2
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1997
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18 June 2022
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There are 2 tables. One table has missing values in columns. So how do you perform join operation between those 2 tables?
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2
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509
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18 June 2022
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What are indexes and types of indexes in SQL?
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0
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308
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18 June 2022
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How to join columns of 3 different Tables?
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3
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533
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18 June 2022
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How to insert an index?
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2
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495
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18 June 2022
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What is the difference between DROP and TRUNCATE commands?
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0
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299
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15 June 2022
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What is AUTO_INCREMENT?
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0
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299
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15 June 2022
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What is an index?
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0
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261
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15 June 2022
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What is a primary key?
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0
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337
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15 June 2022
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What is meant by table and field in SQL?
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0
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478
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15 June 2022
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What is the DBMS primary key and foreign key?
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0
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340
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13 June 2022
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Do I really need triggers for relational database, for example, PostgreSQL?
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0
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301
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12 June 2022
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Does metadata only refer to the description of the attributes in RDBMS?
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0
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251
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12 June 2022
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Why would you add the same field multiple times to an aggregate query?
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0
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366
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12 June 2022
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Are there any OLTP databases that are able to replace the use of OLAP databases?
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0
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283
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12 June 2022
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SQL: What does it mean to own a schema?
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0
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274
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12 June 2022
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What is Instr in MySQL?
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0
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265
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12 June 2022
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How do we filter data in SQL?
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2
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440
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12 June 2022
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What is the difference between "like" and "wildcard" in SQL?
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0
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1420
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12 June 2022
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What are views in SQL? How are they useful?
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0
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374
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12 June 2022
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Wildcards in SQL
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2
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441
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12 June 2022
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What is the difference between ‘any’, ‘all’ and ‘exists’ in SQL?
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0
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2860
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12 June 2022
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Difference between where and having clause. When do we use where function and when do we use having a function
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2
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504
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12 June 2022
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Group BY and MERGE operation
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3
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517
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12 June 2022
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Explain subqueries
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2
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494
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12 June 2022
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Why is creating a data model for a beginner so time consuming and difficult to finish?
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0
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256
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12 June 2022
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How do I check the codes of an SQL database?
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0
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292
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12 June 2022
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How is data modified in a relational database?
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0
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282
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12 June 2022
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What is the main role of SQL?
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0
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273
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12 June 2022
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Is a Kafka topic the equivalent of a database or a table within a database?
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0
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313
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12 June 2022
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