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How to dynamically choose column in SQL query?
To add more on the ‘dynamic’ side of things, use stored procedures. See here for an example: You need to use Dynamic SQL. You cannot use a variable like that in a SELECT statement. You will need to create dynamic TSQL. You don’t specify your RDBMS, but in SQL Server you would use sp_executesql (preferably) or EXEC
How to select column name based on rows in SQL?
The only way to do that is use build your command into a string, and use EXEC to run the result: table and column name parsing is conducted early in the SQL command execution process and have been replaced before any of the actual query is executed. Please Sign up or sign in to vote. Hello, I took below error when I need #Temp2 column.
Which is an example of a dynamic SQL query?
For this example, we want to get columns AddressID, AddressLine1 and City where City = ‘London’. As you can see from this Dynamic SQL query example handling the @city value is not at straight forward, because you also need to define the extra quotes in order to pass a character value into the query.
How to create a dynamic column name in Excel?
I am new to Power Query and am running into some difficulty creating a Dynamic Column Name. I have a function which works well when the table headers are the same but I am now looking to use it to extract income statement data and it is not working for all URL’s.
How to get column names from a table in SQL Server?
One other option which is arguably more intuitive is: SELECT [name] FROM sys.columns WHERE object_id = OBJECT_ID (‘ [yourSchemaType]. [yourTableName]’) This gives you all your column names in a single column. If you care about other metadata, you can change edit the SELECT STATEMENT TO SELECT *. Share.
How can I get all columns from sys.columns?
You can also do it by a SQL query. Some thing like this should help: This gets all columns from all tables, ordered by table name and then on column name. This is better than getting from sys.columns because it shows DATA_TYPE directly.
How to dynamically change table to select from?
You may retrieve the corresponding year and week from a pre-built calendar table and use EXECUTE to handle dynamically built string. Please remember to click “Mark as Answer” the responses that resolved your issue, and to click “Unmark as Answer” if not. This can be beneficial to other community members reading this thread.
How to select a column using a variable?
I was wondering if there is a way to select a column by using a SQL variable. Eg. Table is – ID, Name, Address This shows me ‘Name’ as many times as there are rows in my table. Is it even possible to do what I want ? thanks. Sql is currently interpreting your variable as a string.
Is there way to store results of dynamic SQL into a variable?
The other day during Comprehensive Database Performance Health Check, I was asked if there is a way to store results of dynamic SQL into a variable. This is a very popular question and let us see the answer to this question in this blog post.
How to assign a select result to a variable?
I just had the same problem and… SELECT @PrimaryContactKey = c.PrimaryCntctKey FROM tarcustomer c, tarinvoice i WHERE i.custkey = c.custkey AND i.invckey = @tmp_key UPDATE tarinvoice SET confirmtocntctkey = @PrimaryContactKey WHERE invckey = @tmp_key FETCH NEXT FROM @get_invckey INTO @tmp_key
Do you need to build a dynamic view in SQL?
Finally, one other feature of dynamic views is worth mentioning. You can still set up SQL text against the record definition as you normally would for an SQL view: Again, there is no need to build the view, even with the SQL text entered. In fact the ‘Build -> Current Definition’ option is greyed out completely for dynamic views.
Is there a way to create views dynamically in PHP?
Executing procedure alone in my PhpMyAdmin creates views but the error arises: “Dynamic SQL not allowed in stored function or trigger” when trigger is executed after inserting a new record .. Is there a way to create views dynamically in this case ..
How to create a dynamic view in app designer?
Firstly, create your record in App Designer as normal, setting the record type to ‘Dynamic View’. Because this record type does not require SQL text, it can be saved immediately once the fields have been configured. No record ‘build’ is required. Next, add code to the page to set the ‘real’ SQL text at run-time.