Category "database"

Does Google Bigtable has support for stored procedures?

Is there support for stored procedures in Google Bigtable, or support for any similar mechanism for saving multi-statement queries?

File based database maintenance [duplicate]

I'm looking for a solution where the database schema and data are maintained in xml or in some file format, so that the db schema and the data

WPDB::prepare incorrect. The query argument of wpdb::prepare() must have a placeholder

having this error do you know what is wrong with my code? Notice: wpdb::prepare was called incorrectly. The query argument of wpdb::prepare() must have a placeh

ScyllaDB: Schema vs. No Schema?

On one hand, ScyllaDB markets itself as a wide-column database which implies that a single row can contain any number of columns and the number of columns don&r

why empty values are allowed but not null values in composite primary keys

I am working on an App connecting to the Snowflake database. I stumbled upon an issue while loading CSV files. I was using the NULL_IF condition in copy command

Maps vs Objects vs Arrays for core data structure in React app with document database

My app aims to allow communal viewing+editing of what are essentially tables. It's a react app (with typescript), so being useable as react component state is r

Milvus has a high virtual memory footprint

The original data is 4w 768-dimensional flat, and the sizing tool is used to calculate it should be 118M, the actual memory is 6G, the virtual memory is more th

Viewing SQL queries from all sources

I found this picture in a document. It shows the queries running on a given SQL database. It looks similar to DBeaver software. However, I couldn't find a way t

Spring 2.6.7: Failed to configure a DataSource: 'url' attribute

I have created a new Spring Starter Project and I specified in application.properties the db settings: spring.jpa.hibernate.ddl-auto=update spring.datasource.dr

Sql function to remove values from follower table that are common in unfollow table

I want to calculate total followers of a person from follow and unfollow table using SQl. Form of table are as follows Follow table: Unfollow table: My tries:

Find which where clause is the most troublesome

Problem background I am trying to pin down to what condition(s) are causing no records / rows the most, so to allow me to find the root cause of what data in th

How to store thousands of coordinated in one column of mysql

I am creating one table which has one column which supposed to store more than 5-10k coordinates at a time. I have declared it as longtext but while storing it

Many to many relation table field into MongoDB

While doing a many to many relationship in SQL we create a table that will have the ID of the 2 tables that are forming the relationship. Sometimes in that tabl

use python with TDengine database but got bind params error

It's quite simple to insert data into TDengine database but still got errors. use conn.statement("insert info cache_record values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?,

Set mongoose schema with changing fields

I want to make a mongoose schema that will append timeseries data. I got the idea for that model after reading this (https://www.mongodb.com/blog/post/schema-de

Which relation in MongoDB is better?

For my whole projects I have relationed my multiple collection as this. User model Name:string, email:string, password:string, vehicles:[{ "vehicleId", "vehi

Prefered results

I am trying to list all DEPARTMENT_IDs with PRODUCT_IDs, first where PRODUCT_COST_STATUS = 1 but there are also data with where PRODUCT_COST_STATUS = 0. I prefe

Question - What is the pearson correlation between average dew point and average temperature? my code:

This is my Code * corr_matrix = np.corrcoef(data['Average dewpoint (°F)']data['Average temperature(°F)']) corr = "corr = " + str(round(corr_matrix[1][0]

Create new productpage when new database entry

How can I create a new page when I enter a new product in my database, or hide the parameter inside a normal /.../ ? In this example I will sell Sandles with th

How should I design my application to handle large amounts of data?

I am building an application for building sports betting models. Basically users can create their own criteria and backtest their models across historical data.