Tag: join

SQL Query to get the compliance status

I’m trying to get the following query constructed I got a table called client_vendor as follows. This stores the details of answers provided by client against a vendor for 4 questions. client_vendor …

Mysql Left join index

join mysql select sql

I used the following query To display items from two tables, where the id of the first table is the item_id of the second. My question is , when I try to display this in php , if I want to display a.id i can try with: or since both tables have id,on the first example displays only if there

How to select two values in one row?

join sql tsql

Seems extremely basic, but I can’t find an elegant solution to it. I have two SQL tables, say one contains the users, and the other one, the cities. A third table contains the matches between the two …

Three table join, subquery, or something easier?

join select sql sql-server subquery

I was wondering if someone could help me with this. This is a quick representation of a much more complicated schema. I am looking to get this implementation which is part of a larger stored proc. …

left join and return only the latest record from right table using LARAVEL 6.5.0

join laravel left-join php sql

Table 1 ———- NameID Name —————— 1 A 2 B 3 C —————– Table 2 ——————– ID NameID Order ——————– 1 1 …

left join in hive

hive join left-join sql

would anyone kindly answer the question below? Is left join outer join or inner join in hive? (Do we need to type left “outer” join in order to do the outer join? or simply left join works as outer?) Answer Just like in most, if not all, databases, the outer word is optional in left [outer] join, …

Self-Joining across nested Records in BigQuery

arrays google-bigquery join record sql

I’m trying to do some joins/aggregations between nested fields in single table and running into both SQL problems and the “Correlated sub queries that reference other tables are not supported unless they can be de-correlated, such as by transforming them into an efficient JOIN” error. I&#821…

Doing a union on two tables, but renaming columns that may have the same name in postgres and dropping others

join postgresql sql union

I am doing a union on two tables that have some of the same column names. So, say they look something like this: Here is what I am currently doing: Currently I obviously get repeated columns. So here is what I want to do: 1- The table2’s columns name and details, I would like to rename to t1_name and t2…

Sql: Find sum of column from second table using date from first table

join mysql sql statistics

I’ve been struggling to build a query that calculate the sum of column called ‘TIDAL_VOLUME’ with respect to date value that’s coming from another table. Please see the content of the Table_1: Please see the content of the Table_2: Note: TIDAL_VOLUME might have NULL as well. Now, the s…