distinct – CodeRavo

Resolving ORA-30926: Unstable Rows in MERGE Operations

Understanding and Resolving ORA-30926 The Oracle error ORA-30926: unable to get a stable set of rows … Resolving ORA-30926: Unstable Rows in MERGE OperationsRead more

concurrency, data-consistency, database-error, distinct, dml, isolation-level, merge, ora-30926, oracle, rowid, troubleshooting

Selecting Distinct Rows Based on a Group in SQL

Introduction In SQL, you often need to retrieve unique rows from a table. The DISTINCT keyword … Selecting Distinct Rows Based on a Group in SQLRead more

data-retrieval, database, distinct, group by, row-number, select, SQL, subquery, window function

Retrieving Distinct Values from a List of Objects

In this tutorial, we will explore how to efficiently retrieve distinct values from a list of … Retrieving Distinct Values from a List of ObjectsRead more

.NET, c#, distinct, GroupBy, LINQ, morelinq

Efficiently Merging Lists in C#: Techniques for Combining, Ordering, and Eliminating Duplicates

Merging lists is a common task in programming that often arises when handling collections of data. … Efficiently Merging Lists in C#: Techniques for Combining, Ordering, and Eliminating DuplicatesRead more

c#, Concatenation, custom-comparer, distinct, iequalitycomparer, LINQ, Lists, union

Selecting Unique Records in SQL: Techniques and Examples

Introduction When working with databases, it’s common to encounter situations where you need to retrieve unique … Selecting Unique Records in SQL: Techniques and ExamplesRead more

common-table-expression, distinct, group by, PostgreSQL, row-number, SQL, subquery, unique-records

Counting Distinct Combinations Across Multiple Columns in SQL

Introduction In relational databases, counting distinct combinations of multiple columns can be a common requirement. This … Counting Distinct Combinations Across Multiple Columns in SQLRead more

computed-column, Concatenation, count, distinct, hashing, multiple-columns, SQL, tuple-expression

Selecting Distinct IDs Using LINQ in C#

Introduction to Selecting Distinct Elements with LINQ When working with collections of data in C#, we … Selecting Distinct IDs Using LINQ in C#Read more

distinct, equals, gethashcode, GroupBy, identities, ienumerable, LINQ, list, morelinq

Removing Duplicate Elements from a List in C#

Removing Duplicate Elements from a List in C# Lists are a fundamental data structure in C#, … Removing Duplicate Elements from a List in C#Read more

algorithm, c#, collection, data structures, distinct, duplicate-removal, hashset, LINQ, list

Finding Common Entries with SQL: Retrieving Complete Songs for Selected People

Introduction In relational databases, filtering and aggregating data based on specific conditions is a common requirement. … Finding Common Entries with SQL: Retrieving Complete Songs for Selected PeopleRead more

aggregation, distinct, group by, having-clause, parameterization, SQL, subquery, where-clause