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  2. Null (SQL) - Wikipedia

    en.wikipedia.org/wiki/Null_(SQL)

    A use case of this function is to replace in an expression a NULL by a value like in NVL(SALARY, 0) which says, 'if SALARY is NULL, replace it with the value 0'. There is, however, one notable exception. In most implementations, COALESCE evaluates its parameters until it reaches the first non-NULL one, while NVL evaluates all of its parameters ...

  3. Comparison of data modeling tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    MySQL, MS SQL Server, PostgreSQL, Oracle, IBM Db2: Windows Visual Studio Extension 2005 Open ModelSphere: Grandite Enterprises - SMBs - personal Open source MS SQL Server, MySQL, PostgreSQL, Oracle, IBM Db2: Windows, macOS, Linux Standalone with Data, UML, and process modeling 2008 Oracle SQL Developer Data Modeler Oracle: Enterprises Proprietary

  4. Comparison of network monitoring systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_network...

    MariaDB, MySQL, Oracle, Percona Server, PostgreSQL, SQLite [10] AGPLv3: Yes Yes Yes 2024-12-20; 46 days ago 7.2.1 [11] Zenoss Core: Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Full Control Yes Yes Python, Java: ZODB, MariaDB, Apache HBase: Free Core GPL, Commercial Enterprise Yes Yes Yes 2018-01-09 6.1.0 ZIS-System: Yes Yes Yes Yes Yes Yes Yes ...

  5. Null coalescing operator - Wikipedia

    en.wikipedia.org/wiki/Null_coalescing_operator

    The null coalescing operator is a binary operator that is part of the syntax for a basic conditional expression in several programming languages, such as (in alphabetical order): C# [1] since version 2.0, [2] Dart [3] since version 1.12.0, [4] PHP since version 7.0.0, [5] Perl since version 5.10 as logical defined-or, [6] PowerShell since 7.0.0, [7] and Swift [8] as nil-coalescing operator.

  6. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the HTTP.

  7. Comparison of database administration tools - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_database...

    Oracle MySQL PostgreSQL MS SQL Server ODBC JDBC SQLite Other Programming language; DatabaseSpy: Altova: 2019-04-02: 2019r3 [1] Proprietary: Yes No No Yes Yes Yes Yes Yes Yes IBM Db2, Sybase, MS Access: C++: Database Workbench: Upscene Productions 2024-05-14 6.5.0 Proprietary: Yes needs Wine: needs Wine: Yes Yes Yes Yes Yes Yes InterBase ...

  8. Comparison of OLAP servers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_OLAP_servers

    A list of OLAP features that are not supported by all vendors. All vendors support features such as parent-child, multilevel hierarchy, drilldown. Data processing, management and performance related features:

  9. List of CIL instructions - Wikipedia

    en.wikipedia.org/wiki/List_of_CIL_instructions

    Exit a protected region of code. Base instruction 0xDE leave.s <int8 (target)> Exit a protected region of code, short form. Base instruction 0xFE 0x0F localloc: Allocate space from the local memory pool. Base instruction 0xC6 mkrefany <class> Push a typed reference to ptr of type class onto the stack. Object model instruction 0x5A mul: Multiply ...