Results for “SQL Server”
Small, practical examples. Search by task or narrow things down below.
Remove duplicate values while keeping the smallest key
SQLite: Identify retained keys in a grouped subquery before deleting other copies.
SQLite✓ Tested
Remove surrounding spaces from text
SQL: TRIM removes leading and trailing space characters by default.
SQL✓ Tested
Remove surrounding spaces from text
SQLite: TRIM removes leading and trailing space characters by default.
SQLite✓ Tested
Repeat the first ordered value beside each row
SQL: FIRST_VALUE reads the first value in the current window frame.
SQL✓ Tested
Repeat the first ordered value beside each row
SQLite: FIRST_VALUE reads the first value in the current window frame.
SQLite✓ Tested
Replace a literal substring
SQL: REPLACE performs a literal replacement rather than a regular-expression substitution.
SQL✓ Tested
Replace a literal substring
SQLite: REPLACE performs a literal replacement rather than a regular-expression substitution.
SQLite✓ Tested
Report duplicate business values and their frequency
SQL: Group by a candidate business key and retain only groups with multiple rows.
SQL✓ Tested
Report duplicate business values and their frequency
SQLite: Group by a candidate business key and retain only groups with multiple rows.
SQLite✓ Tested
Require a value with NOT NULL
SQL: Declare required fields at the database boundary, not only in application validation.
SQL✓ Tested
Require a value with NOT NULL
SQLite: Declare required fields at the database boundary, not only in application validation.
SQLite✓ Tested
Require two filtering conditions
SQL: Combine category and quantity conditions with AND.
SQL✓ Tested