Explore the Unknown
Introduction Whenever we work with data, sometimes there are some possibilities of getting duplicate data, not only because of the duplicate entries but also because of the T-SQL statement. We may need to remove it as well. In this instance, most of us follow to implement the DISTINCT keyword in our T-SQL Statement. Applying DISTINCT... Continue Reading →
Introduction When working on large-scale projects, we might have created many tables, or later some point we might have changed the structure as part of the requirements. There is a huge possibility of tables that are not required or unused for a long time. A good practice is to remove/delete those by identifying them. In... Continue Reading →
Introduction In this article, we will discuss how to get the list of table names that contain specific columns. Sometimes we may need to find the table names which contain similar column names or we may know the column name but, we may not remember the table name. By using a simple query we can... Continue Reading →
Introduction In this article, We will discuss where the SQL Jobs are stored in SQL Server. Most of us know the purpose of SQL Job, A job is a specified series of actions that SQL Server Agent performs. Use jobs to define an administrative task that can be run one or more times and monitored... Continue Reading →
Introduction In this simple article, I would like to share how to check DB size. Sometimes when working in a Database, we may need to know the current space occupied by that particular DB. Based on the size, we need to take action. There are three easiest ways to check it, Using T-SQL StatementUsing SP... Continue Reading →
Introduction In this simple tips and tricks article, I would like to share how to when was a view last modified. Let's have a look at the below T-SQL Statement SELECT name as ViewName, create_date as CreatedDt, modify_date as LastModifiedDt FROM sys.views In the above T-SQL Statement list, from the column LastModifiedDt column we can... Continue Reading →
Introduction In this article, we will discuss how to get the created date of a table. Sometimes, we may need to know when the table was created in the particular database. Rather than relying on the row inserted date, we can see when the table was created. Finding the Created date using T-SQL SELECT name... Continue Reading →
Introduction In this simple tips and tricks article, I would like to share how many time zones does our SQL Server supports. Well, it's pretty much easy to find by using the system table sys.time_zone_info sys.time_zone_info Here is the sample T-SQL to get the list of time zones our SQL Server supports. SELECT name AS... Continue Reading →
Introduction In this simple article, lets explore to get total number of columns in a table in SQL Server Example SELECT COUNT(COLUMN_NAME) AS [Number of Columns] FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_CATALOG = 'PracticalWorks' AND TABLE_SCHEMA = 'Demo' AND TABLE_NAME = 'OrderDetails' Fig. 1 Number of Columns in a Table From the INFORMATION_SCHEMA.COLUMNS table we can find... Continue Reading →
Introduction In this article, I would like to share how to rename a column name or table name in SQL Server using T-SQL. For that, we have to use sp_rename. sp_rename renames the objects in the current database. Renaming column name to new column name The syntax for renaming a column in SQL Server using... Continue Reading →
Introduction When working in SQL Server tables, sometimes we may need to change a column that allows NULL to NOT NULL. This change is required as part of business requirement, that is definitely this column contains value or else as part of performance improvements, we may be in need to change the column from NULL... Continue Reading →
Introduction When working in SQL Server Stored Procedures, we are keen about the execution time of it. Its very simple to find execution time of stored procedures in SQL Server. Execution Time Its simple to figure out the execution time of stored procedures using SET STATISTICS TIME ON. SET STATISTICS TIME ON EXEC [Sales].[pGetSalesDetails] After... Continue Reading →
Introduction In this simple article, we will discuss different ways to find the particular table's column names in SQL Server. Method One The first approach is using the system table sys.columns. This table results many columns, but we are interested only in the column name, so I am selecting name column from the sys.columns table,... Continue Reading →
Introduction The columns in a table, that allows NULL in a database sometimes can lead to performance issues. The Nullable columns may be one of the reason to lead query to performance bad. By making columns NOT NULL can help the query to perform well. In this article we will discuss a simple way to... Continue Reading →
Introduction As like an Aggregate functions, the Ranking functions will rank the values of specified field and categorize them according to their rank . Ranking functions are most commonly used to find the top records based on conditions, example, to find the top ranking students, top highest paid employees and etc. Ranking Functions There are... Continue Reading →
Introduction In SQL Server, we can find the Longest String Value and Shortest String Value from the same table. To find the longest and shortest values, there are many ways, but in this article, we will discuss some simplest ways. Disclaimer: From this article, I am not sharing these are the only efficient ways to... Continue Reading →
Introduction In a single transaction (MERGE Statement) we can perform Insert, Update and Delete records on a existing table based on the result comparison between important columns with another table. Which also means we no longer needs to write multiple T-SQL statements to handle Insert, Update, Delete. MERGE Statements To perform MERGE, we need two... Continue Reading →
Introduction Using keyboard shortcuts, it saves time, isn't it?. SQL Server Management Studio is also not an exception !!!. We can add our own custom keyboard shortcuts, that too for T-SQL query. Really cool !!!! How many of you know about this feature???. Do not worry if you did not know this before. Now you... Continue Reading →
Introduction When as a developer working in a database, which is in Development state, we may create some physical tables or temp tables to check the logic. Or based on the initial requirement we may have created more tables as part of Normalizing the data and our reviewer may suggest some better ideas to accommodate... Continue Reading →
Introduction When working in the SQL Server, we may have to check some other databases other than the current one which we are working. In that scenario we may not be sure that does we have access to those Databases?. In this article we discuss the list of databases that are available for the current... Continue Reading →
Introduction SQL Server maintains a table to keep information about each tables that are created in appropriate databases. Its a System Table called as sys.tables. For every table created to the database, a new one record is created in the sys.tables table which contains information such as table name, object id of table, created date,... Continue Reading →
Introduction In this article, We will have a look, How to select the columns results NOT ending with Vowels. In our previous articles we discussed how to select columns results starting with vowels and column results ending with vowels. Select Names Starting With Vowels in MS SQL ServerSelect Names Ending With Vowels in MS SQL... Continue Reading →
Introduction Databases plays an important role in any project these days. It becomes too difficult to manage the objects such as Tables, Views, Procedures and Functions increases over the time and also difficult to manage when number of team members works in Database at the same time. And even after that when we manage the... Continue Reading →
Introduction As a developer, the most used shortcut keys are CTRL+C and CTRL+V i.e., copy and paste. But CTRL+C and CTRL+V allows us to copy paste the last item. But what happens if we want to paste more than one item that we copy or cut without going back? Cycle Clipboard Ring Cycle Clipboard Ring... Continue Reading →
Introduction In this article, we will learn a simple tip to take multiple backup files of one Database. Sometime we may need more than one copy of a backup file in different file location and we can achieve that in two ways, either using T-SQL Query or using SSMS. T-SQL Statement BACKUP DATABASE [PracticalWorks] TO... Continue Reading →
Introduction Sometime we may need to select the column results that the string starts with Vowels. In this article, We will have a look, How to select the columns results starting with Vowels. Example As an example, we have a StudentDetails table, first lets select all the results from the table. SELECT [StudentId] ,[FirstName] ,[LastName]... Continue Reading →
Introduction In an ERP project or any other big applications, there may be many Stored Procedures used. But we are not sure that all the stored procedures are required or not or valid ones. While the requirement(s) has changed, we may ended with another new stored procedure or based on the performance we may have... Continue Reading →
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