Currently I’m developing a search form so my SQL query needs to change with user input. Please see the below code sample. $sqlSearch = “SELECT * FROM seafarers WHERE “; if ($dateS != “”) { $…
Tag: mysql
How to insert a random integer number, for a given column and several rows
I was wondering.. Is it possible, with a SQL query, to: generate randomly, a list of integer number insert this in a table, for a specific column, and for multiple rows I didn’t try anything, to be …
Navicat SQL Consol in table, set record=itself/10
UPDATE `kingdom`.`monsterinfos` SET `PlusCps` = `PlusCps`/10 on table monsterinfos how to set all pluscps records to itself/10 on navicat console.
Join two table with specific conditions in mysql
I have two table Table 1: (user) id,name,username,password table 2: (order) id,user,status status column have two value: 1(cancel order) or 2(success order) I want show all user list with order …
Getting first two unique records from two table joined – Mysql
Table 1: employee_detail: id name 1 ABC 2 CCC 3 FFF 4 ggg 5 jjj Table 2: performance_appraisal id …
How to retrieved parent object which haven’t children with specific values? Sequelize
Description & question Rentals is table with all registered rentals with start and end date as properites. After querying i want to get only this productGroups which have some products that don’t …
Running total with condition and always looking at the previous value
I want to do a sequential sum in a table by taking into consideration a few extra conditions. We need to make sure that when the sum is taken sequentially so if a id has +40 then the next sum would be …
Creating tables with multiple authors, books and categories
I am currently learning database for an upcoming school semester, So I’m practicing with the books I currently have. I have books by multiple authors and authors with multiple books. Also books with …
MySQL Select works fine but Delete hangs indefinitely based on the position of GROUP BY
select * from table1 where ID in ( select min(a.ID) from (select * from table1) a group by id_x, id_y, col_z having count(*) > 1) Above query ran in 2.2 seconds returning four result. Now when …
Response from query couldn’t map to pojo class spring boot
Every response from query should be mapped to a poja class. I have written a native query @Query(value=”SELECT new QuestionJsonTotalAnswer(q.question) FROM mydb.question q”, nativeQuery=true) List&…