Results for “SQL Server”
Small, practical examples. Search by task or narrow things down below.
Count the rows in a table
SQLite: COUNT(*) includes every row, including rows with NULL columns.
SQLite✓ Tested
Create a table and insert its first row
SQL: Define column types and a primary key, then insert one row using an explicit column list.
SQL✓ Tested
Create a table and insert its first row
SQLite: Define column types and a primary key, then insert one row using an explicit column list.
SQLite✓ Tested
Create an index for an equality filter
SQL: A nonunique index can support lookups on a frequently filtered column.
SQL✓ Tested
Create an index for an equality filter
SQLite: A nonunique index can support lookups on a frequently filtered column.
SQLite✓ Tested
Create an index matching filter and ordering columns
SQL: Place the equality-filter column before the ordering column in this composite index.
SQL✓ Tested
Create an index matching filter and ordering columns
SQLite: Place the equality-filter column before the ordering column in this composite index.
SQLite✓ Tested
Delete one row from a practice table
SQL: Restrict DELETE with a primary-key condition and verify the remaining row count.
SQL✓ Tested
Delete one row from a practice table
SQLite: Restrict DELETE with a primary-key condition and verify the remaining row count.
SQLite✓ Tested
Delete rows selected by a related table
SQL: A correlated EXISTS limits the delete to explicitly listed records.
SQL✓ Tested
Delete rows selected by a related table
SQLite: A correlated EXISTS limits the delete to explicitly listed records.
SQLite✓ Tested
Display a fallback for missing data
SQL: Return a supplied label when a column contains NULL.
SQL✓ Tested