Usage: Primarily associated with Microsoft SQL Server, T-SQL is used for managing and querying SQL Server databases. Key Features: T-SQL offers robust transaction control mechanisms, stored procedures, triggers, and functions. It also includes proprietary features such as Common Table Expressions (CT...
Technique #1: How to find duplicate values in SQL table Identifyingduplicate valuesin a database is essential for maintaining data integrity and accuracy. To find duplicate values in an SQL table, you can utilize the “GROUP BY” and “HAVING” clauses along with aggregate functions. ...
SQL stands for Structured Query Language SQL is a standard language for accessing databases SQL has been an international standard (ISO) since 1987SQL StatementsTo access a database, you use SQL statements.The following SQL statement selects all records in a database table called "Customers":...
PL/SQL is a fusion of SQL with procedural traits of programming languages. It was launched by Oracle to upgrade the features of SQL. PL SQL is considered as one of the important languages inside the Oracle database. It is primarily an extension of SQL. This programming language was brought ...
Thus, with SQL you can manage an Access database, but Paradox, dBase, SQL Server, Oracle or Informix example (the database most used). SQL base is RDBMS. Example of (RDBMS) Relational database management system (i.e. MySQL, MS Access, SQL Server ). MySQL, one of the most famous ...
Another way SQL queries can be manipulated is with a UNION SELECT statement. This combines two unrelated SELECT queries to retrieve data from different database tables. For example, the inputhttp://www.estore.com/items/items.asp?itemid=999 UNION SELECT user-name, password FROM USERSproduces th...
We can also use group by statement with SQL min and max function and the order by condition with min and max functions. The below example shows that sql min function is not case sensitive. In the first example, we have used the function name in an uppercase letter. In contrast, in the...
Joins in SQL : Industry example : I need to display departmentwise,EmployeeName with its salary increment. Step 1: First Step is to fetch departmentwise employee name.After analyzing 2 tables we got to know that there is join between Employee and Department with Departmentwide. ...
For example, a website used to pay bills online might request the user’s account number in a web form and then send that to the database to pull up the associated account information. If the web application is building a SQL query string dynamically with the account number the user provi...
SQL syntax, the set of rules for how SQL statements are written and formatted, is similar to other programming languages. Some components of SQL syntax include the following. SQL statements start with a SQL command and end with a semicolon (;), for example: ...