SQL – Page 892 – SQL Questions Answer

Querying case-insensitive columns by SQL in Tarantool

We know that string Tarantool indices can be made case-insensitive by specifying the collation option: collation = “unicode_ci”. E.g.: t = box.schema.create_space(“test”) t:format({{name = “id”, …

Select count(*) query from JdbcTemplate returns different value than running the query from SQL terminal

jdbc jdbctemplate oracle spring-boot sql

I have this simple query : called from Spring Boot. There are no rows with the ID (150) passed in. When running queryForObject, variable count comes up as 1 , while when running the same query from SQL Developer it comes up as 0!! What’s going on here? What am I missing? Answer Possible causes a) you ar…

Getting values from the first row, last row, and an aggregation in MySQL Window function

mysql mysql-8.0 sql window-functions

For a marketing related analysis I need to provide data on the first- and last-touchpoint and of the number of total interactions with our website. A simplified version of our interaction table looks like this: Our current approach looks like this: Currently, we observe that the runtime scales approximately l…

Get count column if at least one value exist – SQL

sql

How to create a separate column for each color if at least one value exists in a group by clause? Does each color column need a separate select statement with group by clause. Thanks in advance. For …

String to Date e.g. Jan 58 to 1958-01-01

sql

I want to turn a short date in varchar into a date: ‘Short month name – YY’ format such as ‘Apr-57’ or ‘Mar-2001’ to an readable format for MSMS to turn it into a date such as 1957-04-01 or 2001-03-01….

Are these SQL queries equivalent? And which is better or is there a better option?

db2 hibernate java spring sql

I am working on a Spring web application that utilizes hibernate to connect to a DB2 database. I am try to optimize a service method that gets called may times during a wed service call by reducing …

Return the highest count record

google-bigquery greatest-n-per-group select sql

The data I am working on looks like below- A_ID B_ID count 123 abcd 1000 123 aaaa 2000 123 aaaa 3000 456 null …

Select * into #Temp not working in dynamic SQL

sql sql-server

When I create a temporary table and insert data into that temporary table through dynamic SQL its work fine. But when I use select * into #TempTable1 from YourTable in dynamic SQL it throw error. I am unable to understand the cause of this error. Table: Working Code:- Not Working Code: Error: Msg 208 Level 16…

Iterate over two loops (CURSOR and WHILE) and print the records grouped by location

sql sql-server

I want to print the records grouped by each location (in this case they are 2), duly ordered. I’m testing with a cursor but it prints the same location twice. How can I fix this? DECLARE @…