Similar to this question, how can I find if a NULL value exists in an array? Here are some attempts. Only a trick with array_to_string shows the expected value. Is there a better way to test this? Answer Postgres 9.5 or later Or use array_position(). Basically: See demo below. Postgres 9.3 or later You can te…
System.Data.SqlClient.SqlException (0x80131904): Invalid column name
I am getting this error while trying to execute the attached code. Please help. I am getting values as list array in controller method successfully but when I try to read data from sql database I am getting error. Controller method: Execption:- Answer Since you are using inline SQL, every value within dogCSV …
Find all tables that have ROWGUIDCOL
IS there a system table I can join to so I can query to find all tables with a column flagged as ROWGUIDCOL? thanks! Answer You could utilize sys.columns with COLUMNPROPERTY: SqlFiddleDemo Output:
print SQL output in jade file
I’m trying to output an sql query in Jade file. I got it so far that I can print plain text to jade but when I try to put an output from SQL it doesn’t work can someone help me. The code in app.js (…
SQL- Difference between TIMESTAMP, DATE AND TIMESTAMP WITH TIMEZONE?
What is the difference between TIMESTAMP , DATE AND TIMESTAMP with TIMEZONE? E.g if I wanted to search for all entries between 01-JAN-1990 and 01-JAN-2000 , how would I do so in each format? I …
Retrieve Oracle last inserted IDENTITY
Since Oracle 12c we can use IDENTITY fields. Is there a way to retrieve the last inserted identity (i.e. select @@identity or select LAST_INSERTED_ID() and so on)? Answer Well. Oracle uses sequences and default values for IDENTITY functionality in 12c. Therefore you need to know about sequences for your quest…
Rip 20 million rows from Power Pivot (“Item.data”)
I received a workbook which contains two tables in power-pivot (one around one million rows, another 20 mill rows). I would like to rip this out (as anything really – but let’s say a CSV) so that I …
Getdate(), -1 day
I do not understand why, but somehow this query doesn’t work. I want to take system date -1 day where the sysdate is smaller by 1 day then current date. WHERE a.SEND_Date >= dateadd(DD,-1,(…
Which is more space efficient, multiple colums or multple rows? [closed]
Suppose if i have a table A with 100 columns of same data type and 100 rows. Table B with 2 columns and 5000 rows of same data type of above table columns. Which table takes more disk space to store …
How to show leading/trailing whitespace in a PostgreSQL column?
I can’t see leading/trailing whitespace in the following following SQL statement executed with psql: Is there a pragmatic way to see leading/trailing whitespace? Answer If you don’t mind substituting all whitespace characters whether or not they are leading/trailing, something like the following w…