Articles by Tag #spl
Browse our collection of articles on various topics related to IT technologies. Dive in and explore something new!
Is It Necessary to Use a Specialized In-Memory Database?
It is easy to think about using an in-memory database to solve the performance problem of reporting,...
SQL,Classify time-close events into a group and assign them a number #eg84
The table in the Big Query database records multiple events of a user, such as a user sorted by time...
Split a large csv file into smaller files #eg45
A csv file has a size far greater than 5M. Below is part of its data: Use Java to do this: Split...
Replace Duplicate Digits in Every 9-digit Number in a Text File with Non-duplicate Ones #eg52
Problem description & analysis Below is text file txt.txt: 853617639 975336865 The text file...
Getting members based on a specified condition #47
Find student records in the Scores table where SCORE is 90 or above. SPL script: A1 Connect to...
Data Comparison between Different Types of Databases-SPL Practice
Data comparison between databases of different types means comparing data between two tables having...
Calculate the hierarchy of recursive references :From SQL to SPL
A certain table in the MS SQL database has a multi-level self-association structure, where the second...
Competition of data processing languages on JVM: Kotlin, Scala and SPL
The open-source data processing languages based on JVM mainly include Kotlin, Scala and SPL. This...
What else can Stream&Kotlin evolve into?
Java has not provided a direct dataset operation syntax for a long time, and writing a simple SUM...
Multi-condition filtering #eg48
Find records of students in class one whose math score is 90 or above from Scores table. SPL...
Read specified columns from a csv file #eg44
Here is a standard format csv file: Use Java to do this: Use the specified multiple column numbers...
Getting members according to primary key values #eg63
In the following product category table, ID field is the primary key. The task is to find ordinal...
SQL: Recursive calculation of tree like hierarchical structure #eg83
SQL SERVER has a task table where the id field is the primary key and the parent field is the foreign...
The Difference between Each Value in a Certain Column and Its Previous One and Display Result
We have table SAMPLE in the Sybase database. The data is as follows: We are trying to calculate the...
Do ordered grouping and aggregation within groups：SQL VS SPL #11
A certain database table describes the payment cycle for multiple projects (IDs), with one payment...
Add records that meet the criteria before each group after grouping ：From SQL to SPL
In a certain view of the PostgreSQL database, the row_index field is an underscore separated string...
Introducing Gill: The Modern Solana JavaScript client library
Introduction Introducing Gill: The new javascript client library to interact with the...
Solana AMM Trading Bot: High-Speed DeFi Trading, Whale Tracking & Presale Strategies
If you’ve ever missed a Solana token presale by seconds or watched whales manipulate prices while...