Setup MysqlDB Replica for one Schema
I have mysql8 DB in my Linux server. I want to setup Replica for this DB. In this DB I have multiple schemas, But I want to setup a replica for only one schema. Is it possible to set up…
Mysql – Getting all rows where a key occurs only once among all columns
column1 column2 A 1 A 2 A 3 B 1 C 1 C 2 D 1 I want a query that prints column1 column2 B 1 D 1 Since B and D occur just once in the table. I have…
Mysql – how to solve the below CTE syntax error for the mentioned query
I have a sample query. I have tried to rewrite it with CTE but some errors occurred. Please check and solve the below query. actual query; select dt.population, dt.name, c.name from ( select distinct countrycode, name from city ) as…
PHP table showing mysql data incorrectly
My goal is return data from my Minecraft server via PHP and MySQL using a table tag I trying to do this with a while statement, but the table is showing me data outside the limits and some values are…
MySQL DB – how to group by firstName and surName columns in my select query?
Could you please help me with group by firstName and surName columns in my select query ? to view 4 rows instead of 8 rows without NULL values i joined these two tables in MySQL: CREATE TABLE IF NOT EXISTS…
Mysql – Can't seem to figure out why my promise array isn't working
I'm working on a project where at one point, I run a series of promises and then push their results (in the .then() portion) to an array. The issue is that, although the promise itself is providing a result value,…
Mysql – Ukrainian letters are poorly sorted
The problem is that when using order_by(), Ukrainian letters are incorrectly sorted alphabetically, that is, before "а", "б" is placed "і" and "є".
MySQL uses wrong index
There is a table with these columns: Name Type Id int DateTime datetime(6) CompanyId int (FK) IsExcluded tinyint(1) There are 2 BTREE indexes: CompanyId ComapnyId,DateTime,IsExcluded Following select is using the first index with only one column and this select takes…
php if elseif else for search results, no results, empty search. I can't get the elseif to apply – WordPress
<?php if ( isset( $_GET['s'] ) ) : ?> <h2 class="black"> <?php echo sprintf( __( '%s Search Results for ', 'html5blank' ), $wp_query->found_posts ); echo get_search_query(); ?> </h2> <?php elseif ( isset( $_GET['s'] ) == null ) : ?> <h2…
Mysql – How can I update a column based on a calculation of other columns in a table?
I would like to give each player a rank / position based on the values of other columns, 1 being the best position. Each prize or penalty is worth a different amount. Can this be done in SQL and how…