Piyush Tripathi

Hi, I am Piyush Tripathi, a Software Engineer (San Francisco) and expert in micro service base API design and development. 

Technical Article

Extract parts of the strings from the SQL results directly by using SQL's substring-extraction API functions

If you need to extract a substring or create a longer string by combining multiple strings, there are a few methods you can use. To extract a specific portion of a string, you can utilize a substring-extraction function.

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2023-05-09 (first published: )

267 reads

Technical Article

Python 3 Script for Generating SQL Insert Statements from CSV Data

This Python 3 script is designed to take CSV file data pasted into the csv_data variable and generate SQL insert statements that can be used to insert the data into a MySQL database. The script is easy to use and can save you a lot of time when working with large amounts of data.

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2023-05-08 (first published: )

4,486 reads

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Question of the Day

STRING_AGG's behavior

Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id     INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
  gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GO
What happens if you execute the following statements?
  1. select STRING_AGG(field1, ';') within group (order by id)  from t0;
  2. select STRING_AGG(field2, ';') within group (order by id)  from t0;

See possible answers