I have seen many examples of how to populate a grid view using Entity Framework. However, I am struggling to figure out how to manipulate the data before populating the results to the grid view. The …
What is the syntax of array literal in H2 db?
I need to write an insert query where one value is an array of 3 elements. I’ve tried to do it like this: The sintax I’ve used for ‘col’ value is valid array literal in PostrgreSQL but H2 treats it as a single value of the array but not as an array with 3 elements. Table DDL: Answer Based on
BigQuery query nested json
I have JSON data which is saved in BigQuery as a string. { “event”:{ “action”:”prohibitedSoftwareCheckResult”, “clientTime”:”2017-07-16T12:55:40.828Z”, “clientTimeZone”:”3″, …
MS Access 2016, joining multiple tables with composite keys
Good Morning all, My first question, so pardon some bad form if it exists. I currently have three tables (table1, table2, table3), all of which have a composite primary key (model-number, serial-…
Query exhausted resources at this scale factor
I was running SQL query on Amazon Athena. And I got the following error couple of times: Query exhausted resources at this scale factor This query ran against the “test1” database, unless qualified …
i can’t display/access images from the mysql database using php
I was able to design a code to upload image and other data to the database and also display some of those data. Everything works but the image doesn’t display and the messages too don’t come up when …
Using a MIN MAX query over a DISTINCT one in MySQL?
With my new job, I am needing to use SQL more and more. As I need to remove duplicate columns I thought that using a DISTINCT statement would be best. However, I was indicated that a MIN MAX statement might be more suited. As I am still fairly new to SQL I was wondering if I could get some advice
pyodbc Incorrect syntax near ‘-‘. (102)
I am trying to select all data from table that contains “-” dash symbol, and i get error cursor.execute(qStr) pyodbc.ProgrammingError: (‘42000’, “[42000] [Microsoft][ODBC SQL Server Driver][SQL …
SQL Month YTD and prior YTD data
I am trying to write a query to return Month-To-Date data for the Current Year, and also the Previous Year. Meaning I need data from 2017-07-01 to 2017-07-26 and also 2016-07-01 to 2016-07-26. However, my query currently returns data from 2017-07-01 to 2017-07-26 (correctly) but also returns data from 2016-07-01 to 2016-07-31 (incorrectly). How can I have the data for
Unique constraint keys not invoked when a field is NULL
I have a table named AQI, with the following column Only one unique value of date, pollutant_code, source_id and time are able to exist, so I defined a unique constraint source_code_time_uq. And the upsert query like The upsert method work normally when all the field available, but when I put NULL in the time column (in an attempt to make