$result = mysqli_query($conn,”SELECT * FROM table1 INNER JOIN `table2` ON `table1`.`id`=`table2`.`id`;”); while ($row = mysqli_fetch_array($result) ){ echo ‘name
Tag: inner-join
SQL Server: table join based on record-dependent values
There’s a general type of query I’m trying to perform, and I’m not sure how to express it in words so that I can find a discussion of best practices and examples for executing it. Here’s an example …
How to combine same result into one row after inner join in LINQ
I’m new in ASP.NET and LINQ. I want to display book name, publisher name, and author name in index page. One book can have more than one author. my query for display the result is like this var …
Concat rows for employee roles
I’m using SQL Server. Looking for similar functionality as GROUP_CONCAT or listagg functions provided in other Databases. Seems like STUFF function is provided to concat rows. Here’s my attempt. Employee Role EmployeeRole Expected Output Answer In SQLServer 2017, you can use aggregate function STRING_AGG(): Note: table aliases make the query more concise and easier to read. I modified the query
How to search from a table using join?
So I have three tables as follows: Members -> id, userId, accountId Account -> id, name User -> id, firstName, lastName, email INSERT INTO `account` (`id`, `name`) VALUES (‘1’, ‘xyz company’), (‘2’…
Error: ‘duplicate key value violates unique constraint’ even when checking with ‘where not in’
I get the error: ‘duplicate key value violates unique constraint’ even when checking if the primary key is already in the table in which I want to insert. I have tried to check with either ‘where not y.a in…’ as well as with ‘where not exists…’ The code I use right now is the following: This above code returns the
Trying to write an inner join to filter out some conditions
I’m currently struggling with carrying out some joins and hoping someone can shed some light on this. I have three tables: A,B,C Table C lists names of individuals Table A lists the food they …
Compare values from one table with average calculation of value with same properties in other table
First post here… I’m trying to create select values from tableA in last 5 minutes and to compare those values each row by row with average(value) from another table. For example: tableA id | …
My Left Join Query in mySql gives duplicate results even after using DISTINCT?
I have tried many solutions to get rid of Duplicate results in Query but no use. Here are my tables: sparepartorderdetails d table: id —– SparePartID ——–OrderID ——– Qty —– Price 101-…
MySQL: select row only where closest to date has column value
I want to return all rows that were public in May (2019-05), so if a row was turned to draft (and not back to public) at any point before the end of May, I don’t want it. For example: id | post_id | …