Introduction T-SQL (Transact-SQL) is a powerful language used to query and manipulate data in a Microsoft SQL Server database. It is a powerful language that allows you to perform complex operations on data stored in a database. One of the…
Introduction When working with data in MS SQL Server, it is often necessary to delete duplicate rows based on certain conditions. This can be done using a combination of the SELECT DISTINCT and DELETE statements. The SELECT DISTINCT statement is…
you are saying that on change in four table you want to update the record in 5th table. For this purpose you can write an update trigger which will trigger on change on any one of the four tables and…
Your code seems fine to me, and I am unsure as to what your exact issue is; however, to clear your TextBox control’s .Text property; assign it a value of string.Empty. textBox1.Text = string.Empty; As far as your insert command,…
Introduction No, SQL Command is not the only way of adding, deleting, and updating records. There are a variety of other methods that can be used to manipulate data in a database, such as using stored procedures, triggers, and other…
your table structure should be below PatientTable PatientId int Primary Key, PatientName varchar(50), EmailId varchar(50) Password varchar(50) TestTable TestId int Primary key, TestName varchar(50) PatientTestTable PatientId int FK(PatientTable) TestId int FK (TestTable) This way you can give relationship to two…
You will need to install the Oracle Client first. Google “Oracle Database Client windows” to find the download from Oracle’s site. 1) Install the 64-bit package first. (VERY important as there is a bug that messes things up if you…
Try: select Agent, max(case when `desc` = ‘Total’ then ColValue else 0 end) Total, max(case when `desc` = ‘Replaced’ then ColValue else 0 end) Replaced from tbl group by Agent Demo sqlfiddle 1 solved T-SQL | SQL-Server Pivot [closed]
SELECT SUM(Value) FROM TableName; Using a GROUP BY (per your comment above) is when you want things grouped over a subset. In this case, a group by would return the same info you’ve sampled, because there’s no groups to sum…
Assuming your are using date and MSSQL2012+: SELECT UPPER( FORMAT(CONVERT(datetime, ‘2017-02-01′,121),’MMM’)) + ‘-‘ +RIGHT(CAST( YEAR( CONVERT(datetime, ‘2017-02-01’,121)) AS VARCHAR(4)),2) M_DELIVERY , ‘DELIVERY FOR ‘ +UPPER( FORMAT(CONVERT(datetime, ‘2017-02-01′,121),’MMM’))+’ ‘+ CAST( YEAR( CONVERT(datetime, ‘2017-02-01’,121)) AS VARCHAR(4)) AS Description Other way(using numbers and…
You do not need any of these IF..ELSE statements or even the sub-queries in your select, what you are after, can be achieved with the following simple select query: CREATE PROC GET_ORDER_ACCOUNT_DETAILS @ORDERID INT AS BEGIN SET NOCOUNT ON; SELECT…
First, I do not really know which is the default OUTER JOIN in T-SQL (I’d bet FULL), but in any case, I think it is unclear – it is best to use LEFT, RIGHT, OR FULL JOIN explicitly when you…
You need to revisit your table design for sure. I am not very clear what you are looking for, but i feel that you are looking for entires in the derived table for which one or more values are null.…
First, let’s define what we need. We need a table (view) with these fields: ProductId, ProductName, ProductViewCount, and RootCategoryId. Imagine, the Category table has RootCategoryId field already. Then we can use this query to receive the result: SELECT P.Id AS…
The two likely problems that I can see without you adding the error code. is that you are missing the column names in your insert statement. is that a user is putting an apostrophe in one of your text boxes.…