I have two tables: Account account_id2 | account_name` 11111 ABC 55555 HEY 99999 XYZ Journal jid | date | dbt_id | description | total_value | cr_id | 1 …
Tag: mysql
MySQL Error – Cannot add foreign key constraint
I know this question has been asked several times but it seemed like the problem was due to different data types between parent and child rows. In my case, the data types are the same but I’m still getting the error. Here’s my code Where DORM_COSTS’ foreign key cannot be added. Thanks! Answe…
MySQL return total COUNT of each value in a column
I have a table of jobseekers with three columns Each jobseeker could have different hiring status for each employer depending on the interview. Now I want to return the COUNT of each total HIRING STATUS But it should only count the jobseeker’s highest hiring status. Say that John was ranked as QUALIFIED…
Is there anybody who can help me with mysql query?
SELECT (SELECT SUM(kwh) FROM energy_logger WHERE TIME >= ’05:30:00′ AND TIME = ’18:30:00′ AND …
What is the best solution for adding INDEX to speed up the query?
Now I have a Query that runs 50 minutes on Mysql database and I can’t accept that… I want this process can running under 15 minutes…. The “sourcetableid” and “mstid” are unique. So what is the best way to add INDEX or optimize on this? Thank you Answer I would write t…
Add auto_increment feature to a primary key
I have a problem related to sql language. I am trying to add the auto_increment features to a pre-existing row with the primary key attribute. What I get back is : Error Code: 1833. Cannot change column ‘ODB_ID’: used in a foreign key constraint target_ibfk of table ‘test3.target’. The…
Truncated incorrect INTEGER value on CREATE TEMPORARY TABLE
I get this error([Err] 1292 – Truncated incorrect INTEGER value: ‘Z001’), when create temporary table vacunas2. I’m using MySql Answer This does not make sense: Perhaps you intend:
Python return error when trying to send a MySQL query that contains MySQL variables
I am trying to retrieve data from a MySQL database by sending a MySQL query using Python. When I send the MySQL Query in MySQL workbench, it runs perfectly fine. When I try the same using Python (in a Jupyter Notebook), it returns an error. Python Code: Error: If I remove the variable in the MySQL Query it ru…
How can i echo out the helper_tbl status column seperately and the getter_tbl status column field too
I want to be able to specify the table column am echoing . Am getting blank when i try to print out just from the helper column Answer Your problem is that both columns are called status, so when the result array is formed the second status value overwrites the first (since a PHP array can only have one value
mysql Cumulative sum for each unique ID in each sale:
I have trouble adding and accumulating my amounts per id, I use this solution but it doesn’t work and it adds up all the ids, I use this: any solution? ineed this For version 5.7 ? Answer You can use a SELECT statement containing window analytic function instead of an UPDATE statement : acumulado column…