I am using postgresql and have a select statement on mulitple tables CREATE OR REPLACE VIEW group.all AS SELECT 'gmail'::text AS main_source, gmail.id, gmail.from, gmail.to, gmail.user_id FROM first_group.gmail UNION ALL SELECT 'yahoo'::text AS main_source, yahoo.id, yahoo.from, yahoo.to, yahoo.user_id FROM second_group.yahoo…
Let's say I have a function that returns type record: CREATE OR REPLACE FUNCTION pnh_row(myId integer) RETURNS RECORD AS $$ DECLARE myRow RECORD; BEGIN // blah blah return myRow; END; $$ language plpgsql; How can I insert and update this…
class A { int b; int c; A(this.b, this.c); } void testFunc(Object param) { print((param as A).b); print(param.c); //is there documentation somewhere? Why is there no need type casting? } Why is there at second time no need type casting?…
I encountered a TypeError with data received from an API. To simulate the issue clearly, I have provided a code example below: //This is mock data to simulate the API. //The length of the array or the keys is not…
I have a column with data coming in as an string representation of an array I tried to type cast it to an array type but the data is getting modified. I tried to use regex as well to remove…
I can convert record to string by just doing myrecord::text. My problem is that my record has text fields which contain commas, and the resulting type cast text is comma separated. Thus, I cannot separate the resulting text in a…
I want to condense my database, which now contains a large number of values, to 1/12 of the original size by averaging twelve consecutive values. To do this, I form the mean value using the types TIMESTAMP and FLOAT(4,2). In…
I'm trying to retrieve data from a database, and have made these two methods inside of a certain "TodoDB" class: Future<List<SurveyData>> fetchAll() async { final database = await DatabaseService().database; final survey = await database.rawQuery('''SELECT * from $tableName'''); return survey.map((survey) =>…
I have an Athena table with a string column which looks like: +-------------------+ | employee_size | +-------------------+ | GREATER THAN 2000 | +-------------------+ | 500 - 999 | +-------------------+ | 28.00 | +-------------------+ | unknown | +-------------------+ | 563 |…
I am working with an api written in php, that is getting data from a postgres database. one of the fields of data is however getting returned by the query as lexicographic sorted. I thus want to try casting it…