DBMS transactions must follow the ACID properties to be considered serializable. There are different types of serializability in DBMS, each with its own benefits and drawbacks. In most cases, selecting the right
In the database management system, a key is an attribute or a set of attributes that is used for uniquely identification of the records i.e., to uniquely identify a tuple (or row) in a relation (or table). Types of DBMS Keys There are a total of 11 keys in the DBMS that you can...
Scalability.A column database's primary advantage is the ability to handle big data. Depending on the scale of the database, it can cover hundreds of different machines. Columnar databases supportmassively parallel processing, employing many processors to work on the same set of computations ...
These types vary between different DBMSs (SQL Server, MySQL, Oracle), but most of them are very similar. We’ll focus on the most important SQL Server/Transact-SQL data types. Textual Data Types As you could see in our model, there are 3 most common types of real-world data we need ...
Inner joins using case or if-else statement INNER LOOP JOIN INSERT ... SELECT should I always use WITH (TABLOCK) and how can i verify if minimal logging was performed? Insert "dummy" record into each group Insert 100 million records from one table to another in batches Insert a count(*...
Inner Join This is the simplest of joins in SQL and the keywords select all rows from both of the tables meeting all the conditions. The results sets will be created by the keywords combining all the rows from both the tables matching the conditions so that the values of the common fields...
Inner joins using case or if-else statement INNER LOOP JOIN INSERT ... SELECT should I always use WITH (TABLOCK) and how can i verify if minimal logging was performed? Insert "dummy" record into each group Insert 100 million records from one table to another in batches Insert a count(*...