Results for “Postgres”
Small, practical examples. Search by task or narrow things down below.
Run a first SELECT query
SQL: Return a literal value without creating a table.
SQL✓ Tested
Search for a literal LIKE wildcard
SQL: Declare an escape character so a percent sign in the pattern is literal.
SQL✓ Tested
Search text without case sensitivity
Match a pattern with PostgreSQL ILIKE.
ILIKE✓ Tested
Select an inclusive range
Find rows with values between two endpoints.
BETWEEN✓ Tested
Select specific columns
Read only the fields a result needs.
SELECT✓ Tested
Select the top row in each group with a tie-breaker
SQL: Filter an outer query on ROW_NUMBER because window functions are not evaluated in WHERE.
SQL✓ Tested
Select values in an inclusive range
SQL: BETWEEN includes both endpoints of the range.
SQL✓ Tested
Show a group total beside each detail row
SQL: A partitioned aggregate preserves detail rows instead of collapsing them with GROUP BY.
SQL✓ Tested
Sort preferred rows ahead of other rows
SQL: A CASE ordering key expresses business priority before a stable secondary sort.
SQL✓ Tested
Sort the highest quantities first
SQL: Specify descending order and a stable tie breaker.
SQL✓ Tested
Sum a row and its immediate predecessor
SQL: A ROWS frame counts physical ordered rows rather than all peers with the same sort value.
SQL✓ Tested
Sum values per category
Calculate a grouped total.
SUM✓ Tested