I am using the Python tweepy library to scrap and collect tweet data for a research purpose. Specifically is use tweepy.StreamingClient class to get tweet the from stream. Returned data is json object whose elements depends on the data fields available with retrieved tweet post. So for example, at one time I …
Tag: database
Update table to make primary key out of two foreign keys
Have a table sample_tag which already exists with 1000’s of entries. It consists of two foreign keys, sample_id and tag_id. However, the database is allowing duplicate sample_id/tag_id records to be created. Without creating a new table, is there a SQL statement to update the sample_tag table such that …
Update Multiple Values in a SQL query based on row values
Is there a possible way only use SQL Update query to update July Data to August data? E.g. The Value of B in July should be updated to 12. Dimension Key is the primary key and Name is the “durable” key. CURSOR is allowed to use but not preferred. Answer You must join the table to itself to set dif…
Can a backticked identifier have a backtick in it?
Is it possible to escape a SQL identifier in either MySQL or BigQuery or any other RDBMS that allows quoting of identifiers with the ` character? For example: Works, but then How would I add a literal backtick to it, or is that just not allowed? Answer Yes. Use a doubled backtick, eg: This is similar syntax f…
Only count SQL entry if two rows (as a pair) have the needed conditions
How can I only count the “Great” per “Country” in this SQL table? My table “commentmeta” comment_id meta_key meta_value 540 Voting Great 540 Country UK 560 Voting Great 560 Country PL 610 Voting Bad 610 Country UK 630 Voting Great 630 Country UK The result should be UK: 2 t…
SQLite: how to exclude records in a database with join tables?
I have a database with a schema similar to: Say they have the following data in them: Artists: artist_id artist_name 1 Bob 2 Shawn Songs: song_id song_name 1 one song 2 another song song_artist: song artist 1 1 1 2 2 2 Here, both Bob and Shawn are involved in one song, and only Shawn is involved in another so…
Restrict “subcategory” based on other “category” column
I’m creating a SQLite database where I have 3 tables: transactions, categories, sub-categories in the transactions table, there is a column “category” with a foreign key to the categories table in the sub-categories table, there is column “parent-category” with a foreign key to t…
Creating a VIEW to remove duplicates from table based on max date
I have a table that appends data each day and records the imported date, however it appends duplicates. My end goal here is to remove the duplicates based on the lowest imported column date. Here would be the initial state of that table: TABLE CLIENTS Name Surname Imported Bob John 18-07-2022 Marta White 18-0…
What do you call the . syntax in SQL?
In many databases, when writing a SELECT query, you can provide the database name along with the table name in order to resolve any ambiguity the database might encounter in case there are multiple databases with the same table names. For example, let’s say the user currently logged into SQL Server has …
Microsoft Azure database admin user creation
I deployed azure MySQL 5.7 database in azure. I can’t create another admin user with admin permission with the serveradmin login. When I tried below command GRANT ALL PRIVILEGES ON . TO ‘sammy’@’localhost’ WITH GRANT OPTION; I am getting error serveradmin@ip don’t have enou…