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Results for “SQL Server”

Small, practical examples. Search by task or narrow things down below.

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SQLiteGetting Started

Give a result column a readable name

SQLite: Use AS to label a computed result column.

SQLite✓ Tested
SQLReporting & grouped calculations

Group by more than one field

SQL: Each distinct combination of grouping fields produces its own row.

SQL✓ Tested
SQLiteReporting & grouped calculations

Group by more than one field

SQLite: Each distinct combination of grouping fields produces its own row.

SQLite✓ Tested
SQLSubqueries & ranked selection

Include every row tied for the highest score

SQL: Compare with MAX rather than limiting to an arbitrary number of rows.

SQL✓ Tested
SQLiteSubqueries & ranked selection

Include every row tied for the highest score

SQLite: Compare with MAX rather than limiting to an arbitrary number of rows.

SQLite✓ Tested
SQLSubqueries & ranked selection

Include missing values in a not-equal filter

SQL: Ordinary inequality does not include NULL; explicitly include it when that is the intended rule.

SQL✓ Tested
SQLiteSubqueries & ranked selection

Include missing values in a not-equal filter

SQLite: Ordinary inequality does not include NULL; explicitly include it when that is the intended rule.

SQLite✓ Tested
SQLRelationships & missing data

Include zero counts for missing relationships

SQL: Count the non-null child key after a left join so a missing relationship produces zero.

SQL✓ Tested
SQLiteRelationships & missing data

Include zero counts for missing relationships

SQLite: Count the non-null child key after a left join so a missing relationship produces zero.

SQLite✓ Tested
SQLBulk changes & set operations

Increment a stored value in the database

SQL: An in-database arithmetic update avoids a separate application read-modify-write step.

SQL✓ Tested
SQLiteBulk changes & set operations

Increment a stored value in the database

SQLite: An in-database arithmetic update avoids a separate application read-modify-write step.

SQLite✓ Tested
SQLBulk changes & set operations

Insert only keys absent from a destination

SQL: NOT EXISTS supports a set-based missing-row insert in a single-writer example.

SQL✓ Tested