so basically I want to import a csv file and one of the columns has the data yes/no in it and I have created an enum that has values ‘red’ and ‘white’ and the yes related to ‘red’ in the enum and no relates to ‘white’ in the enum and the column in the table in the database is of
Tag: psql
How to fix cache lookup failure/corrupted database?
I’ve got a postgres database that I’m trying to clean up with drop schema public cascade. The data on it is not that important and I never made any backups. I’m just trying to rebuild it. However, it seems an error I made earlier is causing the drop command to fail. When I run drop schema public cascade, I get
EXPRESS and SQL “syntax error at or near “$””
I’m making PFP route with EXPRESS and PSQL and I have a little problem. I get an error Syntax error at or near “$” Code: I think there shouldn’t be any problem? Thanks. Answer You just made typo when indicated 1$ instead of $1:
Create a trigger that updates the columns of another table (Postgresql)
I have two tables “books” and “bookOrder” and they look something like this: bookOrder orderID book name required availability 1 Harry Potter 9 yes 2 Twilight 8 yes 3 Bible 8 yes books book name quantity Harry Potter 10 Twilight 5 Bible 8 I want to create a trigger that every time the books table is updated, it will update
Running query against all schemas in Postgres
Context We do schema-based multi-tenancy in our Postgres DB. Each and every schema is associated to a different tenant and will have the exact same structure except for one schema named public. To obtain the list of all the relevant schemas, we can use: Problem We need to periodically clean up a specific table for all the tenants: (The actual
I need to get count of total count for the query I had in postgresql
I created a select query as following, now I need to get the total count of the “No.of Ideas generated” column in a separate row as total which will have a count of the individual count of particular idea_sector and idea_industry combination. Query: Output: Required output: Answer You can accomplish this with grouping sets. That’s where we tell postgres, in
Rails & Postgres selecting sub keys of a JSONB column
I have a column of a database table that is of type JSONB and I’m wanting to get some data from that column. For the most part the column is a flat list of key value pairs. Ex: However, the key I’m after contains an array of JSON data (or can be null/nil): Now, what I want I do
Creating primary key in postgresql takes days
I am trying to write my table to a PostgreSQL database then declare a primary key. My data is really huge (includes billions of rows and total size is approximately 150 GB), when I try to create a primary key after writing the table, it takes forever. Here is how I define the primary key; I am %101 sure about
Convert array of timestamps in PostgreSQL (not in a table)
I need to get this command: to work for an array (or in rows). Reason is that I have a lot of timestamps that need to be converted and if I use the above structure, I just end up adding lots of columns that my front-end can’t handle. My current solution is to actually dump all of the timestamps into
subquery must return only one column during insert data for returning
is that any way for returning join column during INSERT INTO ? here is my query the last sub query is not work because i want return the villages table with two columns is that any way to pass that 2 columns ?? Answer You can use a CTE with returning . . . and then a query: However, the