This article gives an overview of the SQL DROP TABLE statement to remove one or more tables from a database.Read more »
We have various database objects such as view, stored procedures, triggers, functions and indexes in a relational database. Many times, we want to view definitions for these objects. We can use either SSMS graphical way or t-SQL to generate scripts.Read more »
We get the requirement to remove the data from the relational SQL table. We can use both SQL Delete and SQL Truncate statement to delete the data. Understanding differences between these commands helps SQL developers to handle their data well. Additionally, this is a very common question asked in SQL beginner’s interviews.Read more »
We perform calculations on data using various aggregated functions such as Max, Min, and AVG. We get a single output row using these functions. SQL Sever provides SQL RANK functions to specify rank for individual fields as per the categorizations. It returns an aggregated value for each participating row. SQL RANK functions also knows as Window Functions.Read more »
In this article, we will review on DELETE CASCADE AND UPDATE CASCADE rules in SQL Server foreign key with different examples.Read more »
In relational databases, data is structured using various database objects like tables, stored procedure, views, clusters etc. This article aims to walk you through ‘SQL VIEW’ – one of the widely-used database objects in SQL Server.Read more »
Developers deal with numerous data types on a day- to-day basis. We need to change the data type or format as per the user requirement. We use ‘SQL Server rounding function’ like SQL Round, Ceiling and Floor to round the values to the nearest numbers. We perform an arithmetic calculation on data as well. It is a challenging task to change the value of a number to an approximate number. We do not want to display decimal numbers in the application front end.Read more »
This article explores SQL Count Distinct operator for eliminating the duplicate rows in the result set.Read more »
Organizations are generating and analyzing unmatched volumes of data with each passing minute. In this article, we will demonstrate how we can employ SQL Inner Join to query and access data from multiple tables that store this incessantly growing data in the SQL databases.
This article is useful for a beginner in SQL Server administration and gives insights about the SQL Server Ports, the methods to identify currently configured ports.Read more »
SQL Server 2012 introduced a new built-in logical function SQL IIF. It is a shorthand form of writing CASE statement logic or IF-ELSE logic.Read more »
We extract data from SQL Server tables along with various conditions. Usually, we have data in large amounts and SQL Between operator helps to extract a specific range of data from this huge data. For example, suppose we want to know the product sales between Jan 2019 to May 2019. In this case, we can use this operator in a SQL query.Read more »
This article explores the SQL Not Equal comparison operator (<>) along with its usage scenarios.Read more »
This article explores the Identity function in SQL Server with examples and differences between these functions.Read more »
This article explores the useful function SQL IF statement in SQL Server.
This article explores SQL Server Concatenate operations using the SQL Plus (+) operator and SQL CONCAT function.Read more »
This article explores the SQL ISNULL function to replace NULL values in expressions or table records with examples.
We use the SQL CHARINDEX function to find the position of a substring or expression in a given string. We might have a character in different positions of a string. SQL CHARINDEX returns the first position and ignores the rest of matching character positions in a string.Read more »
This article explores the DATEADD SQL function and its usage scenarios with various examples.
In this article, we will review the new SQL TRIM function in SQL Server 2017 onwards as well as providing some information on strings functions that pre-date it like LTRIM AND RTRIM.Read more »
This article explores the DATEPART SQL function and its use in writing t-SQL queries. In the previous article, SQL Convert Date Functions and Formats, we explored various data formats and convert them using SQL Convert function.
This article explains the SQL add column operation into an existing SQL table. We will also explore different examples of SQL add column operations.Read more »
This article explains to the SQL Union and vs Union All operators in SQL Server. We will also explore the difference between these two operators along with various use cases.Read more »
This article will provide a full overview, with examples of the SQL Outer join, including the full, right and left outer join as well as cover the union between SQL left and right outer joins.Read more »