Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 9 months ago. Improve this question Sysdate returns the current system date and time and its return type…
INSERT and SELECT on the same table in one SQL statement
I have the following SQL query : MySQL is complaining with the following error: Is there a way to achieve this without spliting the SQL statment into 2 ?! Answer
How we can loop over SQL Column with specific condition
Explanations: In 1st picture data we have. In the 2nd picture report we want to generate using SQL. In the last we have added table and data script Column Calculation = 2(Yes)/3(Total Column Contain Yes/NO) *100 Sample data: Answer You need to unpivot the CL values first and then implement a dynamic pivot: Re…
How to search in SQL Server for text that has special characters?
I have a SQL Server table with a column of type TEXT that would store candidate resumes in different format. RTF is the most common one but often we get resume data from a 3rd party converter which …
Denormalization table – SQL Select (Pivot Table?)
CAMPAIGN table ID campaign_name 1 Campaign A 2 Campaign B PARTICIPANT table ID campaign_id participant_name 1 1 Alice 2 1 Ben CUSTOM_FIELD table ID campaign_id field_name 1 1 Gender 2 1 Age FIELD_ANSWER table ID participant_id field_id answer 1 1 1 Female 2 1 2 24 3 2 1 Male 4 2 2 28 With these tables in abov…
Unable to create DB2 Procedure through command line
I am trying to create a procedure to do a blanket revoking of executeauth for procedures from a schema. This is in line with trying to secure a non-restricted database. and this is the command I run to process the file with the code above. However, I keep running into this error I’m fairly new to DB2 an…
Android Room database – Delete rows after row limit?
I’m trying to delete any inactive rows after a limit of 1000 rows, and I’ve tried this: but it’s deleting everything from the table. EDIT: I’ve tried this, but it’s deleting all inactive orders: I want to keep the first 1000 inactive orders and delete the remaining older inactive…
Is there a way to check the ‘Connection path’ between two tables using oracle?
For two given tables ‘foo’ and ‘bar’ is there a way to write a SQL Query that return the path connection between those? [ foo ] —> [ n’tables ] —> [ bar ] I also want to check if there is a way to know if there is a valid connection path that connects two differ…
How to update rows and then delete all but one. Data deduplication
Given a table like this: ID A B C D 01 3 2 1 0 01 5 2 1 0 01 0 2 1 0 00 4 8 1 1 00 4 8 1 1 00 4 8 1 1 03 6 4 0 0 03 0 2 0 0 03 6 4 0 0 How could I use SQL
‘ExecuteNonQuery requires an open and available Connection. The connection’s current state is closed.’ – C#
The code: This error shows up when I click the save button: System.InvalidOperationException: ‘ExecuteNonQuery requires an open and available Connection. The connection’s current state is closed.’ I am using the using keyword, if I’m correct doesn’t using automatically opens and …