I am just trying to left join and attach all the table but remaining table seems to be same is there any other way to attach the table like function or temp table to optimize it. SELECT Business ...

I have two tables table1 and table2. Table2 is having less number of rows than table1. In these two tables there are two date columns caldate1 in table1 and caldate2 in table2. So now I need to join ...

I have 2 tables, defined as such: CREATE TABLE `product` ( `pid` SMALLINT( 5 ) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, `name` VARCHAR( 50 ) NOT NULL, `description` TEXT, `qty` SMALLINT( 5 ) ...

I m sure there is a better way I could be doing this. I have three main tables with large amounts of data to run through: records_main, sales, and appointments. Each with close to 20,000 records. I ...

There are many examples of outer join using Linq to Sql, all of them hinging on DefaultIfEmpty() which is not supported with Linq to Entity Framework. Does this mean that outer join is not possible ...

I have the following query which works fine in SSMS. Im using LinqPad (C#) but really puzzling to succeed with the left outer join in LinqToSql: SELECT DISTINCT A.LocID, V1.PrfValue AS pID, ...

When adding the line: LEFT JOIN core_records_sales as sales ON DATE(appointments.date) = DATE(sales.date_sold) To my query, it boosts the time for the script to run from about 8 seconds, to 2-3 ...

thanks for viewing this. I have a db that has users, roles & user_roles. What I am trying to achieve is a login that will select users who have Admin or Associate permissions. The login then uses ...