"1) select avg(session) from table where session> 180
2) select round(sessiontime/300)*300 as sessionbin, count() as sessioncount from table group by round(sessiontime/300)300 order by session_bin
3) SELECT t1.country AS country_a,
t2.country AS country_b
FROM (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
GROUP BY country
) AS t1
JOIN (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
`GROUP BY countr"
Erjan G. - "1) select avg(session) from table where session> 180
2) select round(sessiontime/300)*300 as sessionbin, count() as sessioncount from table group by round(sessiontime/300)300 order by session_bin
3) SELECT t1.country AS country_a,
t2.country AS country_b
FROM (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
GROUP BY country
) AS t1
JOIN (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
`GROUP BY countr"See full answer
"BETWEEN and HAVING clauses in SQL serve different purposes:
1. BETWEEN Clause
Used to filter rows based on a range of values.
Works with numeric, date, or text values.
Can be used with WHERE or HAVING clauses.
The range includes both lower and upper bounds.
Example: Filtering employees with salaries between 30,000 and 50,000
`SELECT * FROM Employees
WHERE salary BETWEEN 30000 AND 50000;`
2. HAVING Clause
Used to filter **groups"
Meenakshi D. - "BETWEEN and HAVING clauses in SQL serve different purposes:
1. BETWEEN Clause
Used to filter rows based on a range of values.
Works with numeric, date, or text values.
Can be used with WHERE or HAVING clauses.
The range includes both lower and upper bounds.
Example: Filtering employees with salaries between 30,000 and 50,000
`SELECT * FROM Employees
WHERE salary BETWEEN 30000 AND 50000;`
2. HAVING Clause
Used to filter **groups"See full answer
"SQL databases are relational, NoSQL databases are non-relational. SQL databases use structured query language and have a predefined schema. NoSQL databases have dynamic schemas for unstructured data. SQL databases are vertically scalable, while NoSQL databases are horizontally scalable."
Ali H. - "SQL databases are relational, NoSQL databases are non-relational. SQL databases use structured query language and have a predefined schema. NoSQL databases have dynamic schemas for unstructured data. SQL databases are vertically scalable, while NoSQL databases are horizontally scalable."See full answer
"Clarification questions
What is the purpose of connecting the DB?
Do we expect high-volumes of traffic to hit the DB
Do we have scalability or reliability concerns?
Format
Code -> DB
Code -> Cache -> DB
API -> Cache -> DB - APIs are built for a purpose and have a specified protocol (GET, POST, DELETE) to speak to the DB. APIs can also use a contract to retrieve information from a DB much faster than code.
Load balanced APIs -> Cache -> DB
**Aut"
Aaron W. - "Clarification questions
What is the purpose of connecting the DB?
Do we expect high-volumes of traffic to hit the DB
Do we have scalability or reliability concerns?
Format
Code -> DB
Code -> Cache -> DB
API -> Cache -> DB - APIs are built for a purpose and have a specified protocol (GET, POST, DELETE) to speak to the DB. APIs can also use a contract to retrieve information from a DB much faster than code.
Load balanced APIs -> Cache -> DB
**Aut"See full answer
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