logo
down
shadow

Dreamfactory : How to use MySQL aggregate functions in queries


Dreamfactory : How to use MySQL aggregate functions in queries

Content Index :

Dreamfactory : How to use MySQL aggregate functions in queries
Tag : mysql , By : Don Changer
Date : November 29 2020, 09:01 AM

will be helpful for those in need There are a few things to note. The "SELECT" fields can not contain function calls, but starting with version 2.0.2, DreamFactory supports virtual fields. Create vcol2 to be "HOUR(col2)" and vcol1 to be "MAX(col1)-MIN(col1)" then use them in your field parameter.
As for the filter error, there is a bug in the parsing that is fixed in the 2.0.3 build coming out next week (12/21), but all function calls must be surrounded by parens, i.e. "col3 = (CURDATE())".
GET http://server/api/v2/service/_table/table_name?filter=col3%20%3D%20(CURDATE())&group=col3&fields=vcol2,vcol1

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Why does MySQL allow "group by" queries WITHOUT aggregate functions?


Tag : mysql , By : user109127
Date : March 29 2020, 07:55 AM
it fixes the issue I believe that it was to handle the case where grouping by one field would imply other fields are also being grouped:
SELECT user.id, user.name, COUNT(post.*) AS posts 
FROM user 
  LEFT OUTER JOIN post ON post.owner_id=user.id 
GROUP BY user.id

Is it possible to use queries within aggregate functions?


Tag : sql , By : user105769
Date : March 29 2020, 07:55 AM
should help you out Is the following acceptable in SQL: , Syntactically, I would have written it like this:
SELECT P.pid, P.cnt
  FROM Professors P
  WHERE P.cnt <= (SELECT MAX(P2.cnt) FROM Professors P2)

PostgreSQL: sub-queries and aggregate functions(Sum)


Tag : sql , By : Lathentar
Date : March 29 2020, 07:55 AM
this will help I tried referring to other questions; I've inferred that sub-queries cannot be used on aggregate functions, but I cannot solve this use case.
SELECT
  c.name as customer_name,
  sum(coalesce(p.price, 0) * coalesce(pr.quantity, 0)) as amount_purchased
from
  CustomerInfo c
  left join PurchaseRecords pr on c.c_id = pr.c_id
  left join ModelInfo mi on mi.m_id = pr.m_id
  left join ProductInfo p on p.p_id = mi.p_id
group by
  c.name

MySQL - Index to speed up queries with aggregate functions


Tag : mysql , By : user177837
Date : March 29 2020, 07:55 AM

MarkLogic: Using aggregate functions in SPARQL queries


Tag : development , By : user186876
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • getting error in Sql Query incorrect syntax near ')'
  • MariaDB/MySQL select query replace json array of ids into concatenated values
  • How to create a MySQL Query to get sales for each date of month (Like Calendar)?
  • Insert query fails with error duplicate entry , where as select query returns null
  • MySQL - ORDER BY multiple words, then alphabetically?
  • With a one-to-many relation, how do you get every row of table A if table B doesn't reference some rows of A?
  • How to add temporary column with data with MYSQL?
  • Why is subquery join much faster than direct join
  • Under standing Update Queries, and how many sets one query can have
  • How to select multiple values in a subquery but have each value assigned to matching parent select value?
  • SQL getting a column to match multiple conditions in CASE
  • Converting date operation from MySQL to PostgreSQL
  • MySQL - Join these subqueries into a single query
  • Show the list of all product's names ordered along with first and last names of the customers
  • Mysql `OR` condition doesn't work with JOIN
  • how can I hide the data that my controller returns making a CRUD in Laravel & vue.js?
  • Sum of values for all accounts using the most recent date for each
  • MySQL Query between three tables (with also ORDER and LIMIT)
  • MySQL date_format () function vs SQL Like operator
  • How to Combine two select and two where clause?
  • How to convert this (strange formated) data ? a:5:{s:15:"nc_notification";s:1:"2";s:20:"iso_add
  • SELECT result within select isn't reachable?
  • How to call stored procedure at sqlfiddle?
  • How Do I convert this table from row to column?
  • Mysql check if table has any value
  • Mysql Index misbehave in rails
  • Calculate number of students per class without using a JOIN
  • "new ephemeral certificate expires too soon: current time:"M
  • How to write this SQL (about date and time)?
  • What would take longer to execute in a million row table LIMIT 37,22 or LIMIT 100037,22
  • Can't connect a spring-boot 2 service to mysql in a different container
  • Insert statement using variable in sql query
  • Getting all users except admins in many-to-many relationship
  • How to pass the data from modal to MYSQL using VueJS
  • MYSQL - get a row from a table in every database
  • date type casting in npm package?
  • GROUP BY a, b VS GROUP BY b, a
  • How to store multiple values on a mysql table
  • 2 SELECT in a query with ORDER BY
  • BigQuery: How to run cohort / retention analysis for userbase across 2.5 years?
  • Can't connect local database. Sequel Pro encountered an unexpected error
  • How do I change the auto increment counter in MySQL from +1 to +43
  • How to query non duplicate rows but keep the primary key
  • How to group all scores by username in a table and display rank?
  • How to remove timestamp with the date using sql query?
  • Modify SQL query to get data only from past 2 months
  • change engine type from MyISAM to InnoDB
  • Need mysql query to find total sum as per matched query
  • json_table syntax and structure
  • Is there any way in sql query to rank certain value in ordered set of records such that ranking reset after it encounter
  • not able to login in google cloud storage sql instance
  • Inserting data into MySQL database with VBA
  • Make (user_id&music_id) unique in Likes table and Dislikes table
  • Can't do 50k insertion using bulkCreate
  • SQL syntax to get data IN date
  • How to get 4-byte emojis to store correctly in mysql 5.7?
  • How to create an in-memory database for PHPUnit testing?
  • How to write an SQL query to fetch the id in a column that has all the required data in some other column?
  • Invalid COLUMN in the select list because it is not contained in either an aggregate function or the GROUP BY clause
  • How to get actual index number of rows in MySQL when using Where clause
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com