I am reading an SQL query in Redshift and can’t understand the last part: … LEFT JOIN (SELECT MIN(modified) AS first_modified FROM user) ue ON 1=1 What does ON 1=1 mean here?
The specified schema name either does not exist or you do not have permission to use it
I am trying to create replica of my database from SQL server to another. For that I am generating script from original server and trying to run in another server. I’ve created database manually with …
How to select rows with uniq value of column and to calculate count?
I have table like this for example: I need to select each uniq column by ver and to calculate how much is total of rows by each uniq ver column I think each total to add into the new column …
Using EXCEPT clause in PostgreSQL
I am trying to use the EXCEPT clause to retrieve data from table. I want to get all the rows from table1 except the one’s that exist in table2. As far I understand, the following would not work: The only way I can use EXCEPT seems to be to select from the same tables or select columns that have the
How to find all connected subgraphs of an undirected graph
I need some help for a problem that i am struggling to solve. Example table: ID |Identifier1 | Identifier2 ——————————— 1 | a | c 2 | b | f …
Pivot Queries – trouble with SUM()
I have the following query: select extract(year from p.when_paid) yyyy, MONTHNAME(STR_TO_DATE(extract(month from p.when_paid), ‘%m’)) mm, f.name, IF(p.payment_type_id = 1,SUM(p.amount),null) MedPay, …
MySQL get the nearest future date to given date, from the dates located in different table having Common ID
I have two tables – Client and Banquet Client Table —————————- ID NAME 1 John 2 Jigar 3 Jiten —————————- Banquet Table ————————-…
Convert Hibernate @Formula (case ) to JOOQ field
I am rewriting entire DB access layer from Hibernate to JOOQ and I face following issue. One of JPA models is annotated with @Formula annotation as follows: I saw the following question : Convert Hibernate @Formula to JOOQ field but it did not really help How can above query be translated to JOOQ DSL? Answer …
How to display query results in php
I know how to make a set query display, but I need to take an input, run a statement, and display the result. Here is what I have: HTML: PHP: I also want to make the statements read only so nobody can mess with my tables. im a little new to this i might need some extra explaining Answer To
How to handle True, False or NULL in where clause
How can I reduce this to only one where statement @state as bit I wish I could compare True, False or NULL in one select statement Answer Would this not work? Another approach would be to use coalesce on both conditions.