mysql
× 33
Use this tag for questions about MySQL database system. MySQL is a free, open source Relational Database Management
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sql
× 14
Use for questions about one or multiple Structured Query Language (SQL) flavours. In order to get the most helpful answer
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pointers
× 14
Use for questions dealing with a data type that "points to" another value stored in memory. DO NOT use when talking about
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python-internals
× 2
Use for questions about how Python works: design decisions, internal data structures, performance, etc.
integer
× 2
Use for questions about the integer datatype, namely about storing, manipulating, or performance considerations.
json
× 11
Use for questions about JavaScript Object Notation (JSON), a textual data interchange format. Please ensure that all
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cqrs
× 1
Use for questions about Command-Query Responsibility Segregation (CQRS). CQRS is an architectural pattern which separates
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database-index
× 2
Use for questions about database indexes. Indexes are build based on one or more tables or views columns and map to the
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table-column
× 1
Use for questions about tables columns (e.g. data types, naming conventions).
cpu-registers
× 0
For questions about CPU registers, which are small, fast memory storage used by processors to hold data that is being
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event-loop
× 1
For questions dealing with an infinite cycle of actions, typically when processing data using messages or callbacks.
charts
× 0
For questions dealing with the graphical representation of data (e.g. graphs or diagrams).
stored-procedures
× 5
Use for questions about database objects that encapsulate SQL code.
linq
× 4
Use for questions related to Microsoft's Language Integrated Query that adds data querying capabilities. Based on the
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join
× 3
Use for questions about joining two or more relations in a relational database system or the JOIN keyword.
hash
× 4
For questions about hash functions. Hash functions are mathematical functions that convert an amount of data into a small
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order-of-evaluation
× 2
For questions about the order of execution of events in software applications. Examples include tasks execution order in
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trigger
× 0
Use for questions about code execution triggered when some condition(s) are matched. E.g. a table schema is changed, a
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validation
× 5
For questions dealing with checking (input) data to fit the required specifications.
enum
× 2
Use for questions dealing with enums, a data type containing a set of named values/elements.
data-structures
× 9
About questions related to working with data structures, ways of organizing data that provides better performance when
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search-trees
× 1
About questions related to trees that store data in such a way that makes searching more efficient than other data
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referential
× 2
For questions about the referential integrity concept used in relational databases.
array
× 13
For questions about arrays, an ordered linear data structure consisting of a collection of elements identified by one or
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import
× 1
For questions dealing with copying / moving data from a source outside the application into the platform itself.
format
× 6
For questions dealing with data format (e.g. text formatting, content format, file formats). TRY to avoid using it and
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merge
× 1
Use for questions related to combining two or multiple sets of data. Try to AVOID this tag and use a more specific one
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pivot-table
× 1
Use for questions about using pivot tables, a method of summarizing data in tabular form.
sql-server-2014
× 1
Used for questions dealing with SQL Server 2014 database engine or T-SQL language features.
caching
× 6
For questions dealing with caching data, a mechanism for temporarily storing (caching) data locally in order to reduce
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redis
× 2
Use for questions about Redis (cache) an in-memory data structure store, used as a database, cache and message broker.
reactive-programming
× 1
For questions about the reactive programming paradigm, which is oriented around data flows and the propagation of change.
varchar
× 1
Use for questions dealing with SQL data types which are a set of character data of indeterminate length.
fonts
× 4
Tag the questions about the usage of electronic data files containing a set of glyphs, characters, or symbols in the
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fscanf
× 1
For questions about fscanf C function, part of scanf() functions family used for reading and converting formatted data.
scanf
× 2
For questions about C scanf() functions family used for reading and converting formatted data.
database-trigger
× 2
Use when dealing with special procedures that are called when a database event occurs. E.g. rows are being inserted or
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data
× 0
Please DO NOT use this tag as it is too vague.
sfinae
× 1
"Substitution failure is not an error" (SFINAE), a specific scenario in C++ template meta-programming where instead of
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binding
× 3
For questions about linking program entities. Example contexts include dependency injection (link interface to its
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linq-to-sql
× 1
For questions about LINQ to SQL, a .NET Framework component that provides a run-time infrastructure for managing
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auto-increment
× 2
For questions about automatically generating identifiers in a row. An auto-increment is a database constraint that
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entity-framework-migrations
× 3
For questions about (database) migrations, a feature of Entity Framework that provides a mechanism for detecting changes
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parameters
× 2
For questions about variables used to refer to data provided typically as input in a subrouting.
thread-local
× 1
For questions involving the thread-local concept which refers to making data available as one copy per thread.
cypher
× 2
For questions about the query language used by Neo4j and AgensGraph graph databases.
neo4j
× 2
For questions about Neo4j graph database.
dbset
× 1
Use for questions about Entity Framework's DbSet or DbSet<T> data structure. A DbSet represents the collection of all
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timestamps
× 2
For questions about the time at which an event is recorded by a computer system (e.g. database records creation or
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tcp-ip
× 1
For questions about Transmission Control Protocol (TCP), a transport layer protocol that provides a connection-oriented
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primary-key
× 1
For questions about database primary keys (PKs). A PK is a special key that is composed of a set of attributes that is
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unique-constraint
× 1
For questions about (database) unique constraints. This constraint type is an index that sets one or multiple fields to
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back-end
× 1
For software architecture related questions dealing with the back-end, the data processing components of a software
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string-formatting
× 2
For questions dealing with methods to display various data types into a string.
mvvm
× 7
For questions about using the Model-View-ViewModel design pattern, used for implementing user interfaces that separate
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wpf
× 8
For questions about Windows Presentation Foundation, a framework for rendering user interfaces in Windows-based
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database
× 17
For questions about databases in general. A database is an organized collection of data. It is the collection of schemas,
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orm
× 4
For questions about ORM usage. Object-relational mapping (ORM) is a technique for mapping object-oriented systems to
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polymorphism
× 2
For questions about polymorphism, a feature that allows values of different data types to be handled in a uniform manner.
transactions
× 2
For questions dealing with (database) transactions, a set of operations that either all succeed in the specified order or
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type-punning
× 3
For questions about reinterpreting an object of some data type as an object of some other data type, typically in C /
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repository
× 2
For questions about repositories. A repository typically means either a data store of a version control system containing
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data-migration
× 2
Use for posts about the movement of data from one location to another. For the specific case of database data, use the
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postgresql
× 6
For questions about programming with PostgreSQL, an open-source, cross-platform relational database management system.
datetime
× 2
For questions about programming with DateTime objects or similar. Many programming languages use this type to describe a
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timezone
× 1
For questions about programming with time zones. A time zone is a region on Earth that has a uniform, legally mandated
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input
× 4
For questions about data entered by the user (i.e. user input)
common-table-expression
× 2
cte
For questions about Common Table Expressions (CTE), a temporary result set that is defined within the execution scope of
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compression
× 1
For questions about the process of encoding data such that it uses fewer bits as compared to the original representation.
data-loss
× 1
For questions dealing with data loss which can be either an error condition in information systems in which information
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3d
× 5
For questions about 3D computer graphics. 3D graphics use a three-dimensional representation of geometric data stored in
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QFile
× 1
For questions about QFile class included in the Qt toolkit, which provides an interface for reading from and writing data
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buffer-overflow
× 1
For questions about attempts to copy data into a buffer without checking for sufficient space, causing data to be
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database-migration
× 2
For questions about the process of transferring data between databases used by a software system (typically between
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database-schema
× 3
For questions about the database schema, a description of the structure of the database (tables, columns, constraints,
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http-redirect
× 0
For questions about HTTP redirection that happens when the server sends an HTTP redirect message with the updated URL.
system.data.sqlclient
× 1
For questions about using .NET SQLClient functionality from System.Data.SqlClient namespace.
backwards-compatibility
× 1
For questions about backward compatibility, the attribute of a software or hardware system that can successfully use
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date
× 3
For questions about working with dates. A date is a reference to a particular day represented within a calendar system
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data-archiving
× 0
For questions about data archiving, the process of identifying data that is no longer active and moving it out of
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gridview
× 1
For questions about usage of gridviews. A GridView is a control for displaying and manipulating (typically 2D) data from
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initialization
× 2
For questions about initializing the contents of a data structure (e.g. object in an OOP language).
archiving
× 1
For questions about data archiving, the process of moving data that is no longer actively used to a separate storage
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linked-list
× 5
For questions about linked lists. A linked list is a data structure where each element contains a reference to the next
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cookies
× 2
For questions about HTTP cookies, pieces of data stored by the user's web browser.
web-scraping
× 1
For questions about extracting specific information from websites that do not provide an API or other methods of
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persistence
× 1
For questions related to the capability of saving data outside the application memory.
operators
× 2
For questions about operators, the symbols used for performing calculations and comparisons on data.
variable
× 4
For questions about using variables. A variable is a named data storage location in memory.
yaml
× 2
For questions about the YAML data serialization format.
simpledateformat
× 1
For questions about the SimpleDateFormat class which deals with data and time parsing and conversion operations.
date-parsing
× 2
For questions about converting a parameter (typically a string) into a date or date and time object.
opaque-data-type
× 0
For questions about opaque data types. An opaque (data) type is a data type whose concrete data structure is not defined
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pgp
× 2
For questions about Pretty Good Privacy (PGP). PGP is a data encryption and decryption application that provides
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