Mysql – Query on date part of Timestamp
I'm trying to return 2 columns for a graph on with date and the other with count of jobs for the date. Jobdate is a timestamp however. So although the first query is instant, it will give a new row…
JpaRepository MySQL get the value of the string is null
In Service When I use print the keys that output null but print the ids that is correct please tell me why I'm sure the database has data orderBean @EntityListeners(AuditingEntityListener.class) @Entity @Table(name = "`Order`") public class OrderBean { @Id @GeneratedValue(strategy…
What is MySQL "index_block_length"?
MySQL official documentation 8.8.5 Estimating Query Performance offers the way to count disk seeks: log(row_count) / log(index_block_length / 3 * 2 / (index_length + data_pointer_length)) + 1 In MySQL, an index block is usually 1,024 bytes and the data pointer…
Mysql – Sequelize CLI migration error Cannot read properties of undefined (reading 'detail')
I'm running npx sequelize-cli db:migrate to create the table in the database and returns the following message: Sequelize CLI [Node: 18.9.1, CLI: 6.5.1, ORM: 6.20.1] ERROR: Cannot find "/src/db/migrations/config/config.json". Have you run "sequelize init"? ERROR: Cannot read properties of undefined…
Mysql – How can I count data from a column being added in the same query?
I have a query setup for data verification that will join a few tables and auto-convert currencies from non-USD to USD. SELECT c.Id, c.Currency , cr.CPDealId, cr.UnderwriterId, cr.PlacedDate, cr.Fee, cr.FeeDue, cr.AllocatedFeeDue , f.Rate , (CASE WHEN c.Currency <> 'USD' THEN…
Mysql – How to Select latest record for a customer from a table with column value from the first row
I have scenario like below Sign up promo code The sign up promo code, if applicable, is what the member used to create their membership. Our system currently creates a new line for a member each time they make a…
Mysql – How to fetch data from database without using a sub-query in following scenario?
I had to get the town name and state from database which deployed the first reciever(a device to sense sharks). I used the following query with a subquery computing MIN of deployed dates: SELECT t.town,t.state,r.deployed FROM receiver as r inner…
Mysql – Most frequently occurring value in sql
I have created a sample table here: https://dbfiddle.uk/wUvTIsyN I am trying to query the most frequently occurring value with group by. Here's my attempt: select pid, propName, Address, City, Response, count(Response) as cr from Prop group by pid, propName, Address,…
Get data from another Database in Codeigniter MySQL
I want to get data from another DB in MySQL except the defualt DB. I added the following line into my model in addition to the excisting code. Another DB as 'storesDB'. $this->load->database('storesDB', TRUE); My model as follows : public…
Mysql – Update_timestamp not getting updated automatically on table updates
I have a table that looks like this: CREATE TABLE `test_table` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `ref_id` bigint(20) NOT NULL, `count` int(11) DEFAULT NULL, `status` tinyint(4) NOT NULL, `create_timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `update_timestamp` timestamp NOT NULL DEFAULT…