I have the table like I want the result to be like : The same ID should have same random_ids. I’m using the update statement to generate the Random_IDs after creating the table. Is there something else that I need to add to the update statement? Please advise. Answer Why would you use update for this? J…
T-SQL Query Column based on filtered condition
I could do this rather easily in Python (or any other language), but I’m trying to see if this is possible with pure T-sql I have two tables: Table A has a bunch of general data and timestamps with each row Table B is considered metadata So the general data is referenced to a “RunNo”. The ti…
How can i count project status by change/update made
I want to count status change by id from to I have a mysql status table which has a name with pre implementation, implementation and operations states. a project contains project id, name, start date fields. both status and projects have a many to many relationship called project_status table contains project…
Efficient way to map new values to a sql query (i.e 4 columns each with same credentials)
First I am new to Postgres so I may be describing this problem incorrectly so please point me to an answer if it has already been answered. I have a database with 10 columns. Lets say 4 columns all use the same codes for values (i.e the letter a, b, d, e) I want to rename all of these in
How to use multiple select queries inside c# by oracle
I need to select multiple select queries inside the C# code block. when I use it, I am getting an error such as an invalid character. I got that it is an error by using a semicolon inside the queries, Is there any solution for selecting multiple select queries? I am using Oracle.ManagedDataAccess ExecuteReade…
How to give row number for consecutive combination and duplicate it for duplicates
I created simple table to illustrate my problem: DECLARE @Test TABLE ( id int, Type VARCHAR(10), SectionId int ) Insert into @Test …
Find the count of words in string
SQL: How to find the count of words in following example? Subquestions: How to count spaces? How to count double/triple/… spaces as one? answer by Gordon Linoff here How to avoid counting of special characters? Example: ‘Please , don’t count this comma’ Is it possible without string_sp…
Hibernate Null Attribute Value using Camel-Case
Using Hibernate 5.3, Spring Boot 2.1, MySQL, that runs in Windows 10 OS. What I know I have verified on my phpmyadmin the case of the attributes. And as long the case were the same as the attributes of my Entity class you don’t have to explicitly define the column name in that Entity. And using @Column(…
MySQL Generate conditional result based on join
I have 2 tables – department and employee. Employee table: department_id is a foreign key from the department table (id column) |————-|——————|—————|—————–| | …
How can i optimize this mysql query to be faster when it comes to thousands of rows?
I just started my website, and after 5 days it slowed down, it took nearly 30 seconds to load the website, because the mysql database got bigger with plus 50-60k rows. I have searched hours for …