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	<id>https://wikimd.org/index.php?action=history&amp;feed=atom&amp;title=Data_validation</id>
	<title>Data validation - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wikimd.org/index.php?action=history&amp;feed=atom&amp;title=Data_validation"/>
	<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;action=history"/>
	<updated>2026-05-09T17:58:46Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.44.2</generator>
	<entry>
		<id>https://wikimd.org/index.php?title=Data_validation&amp;diff=6527881&amp;oldid=prev</id>
		<title>Prab at 17:19, 18 March 2025</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;diff=6527881&amp;oldid=prev"/>
		<updated>2025-03-18T17:19:41Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 17:19, 18 March 2025&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Data_validation&amp;diff=6502744&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;diff=6502744&amp;oldid=prev"/>
		<updated>2025-03-17T08:40:38Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:40, 17 March 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l68&quot;&gt;Line 68:&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Data_validation&amp;diff=6223884&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;diff=6223884&amp;oldid=prev"/>
		<updated>2025-02-10T13:28:13Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:28, 10 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l66&quot;&gt;Line 66:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 66:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{No image}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{No image}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Data_validation&amp;diff=6223530&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;diff=6223530&amp;oldid=prev"/>
		<updated>2025-02-10T13:16:58Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:16, 10 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l66&quot;&gt;Line 66:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 66:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{No image}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Data_validation&amp;diff=5080883&amp;oldid=prev</id>
		<title>Kondreddy Naveen at 02:34, 12 January 2024</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Data_validation&amp;diff=5080883&amp;oldid=prev"/>
		<updated>2024-01-12T02:34:19Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;= Data Validation =&lt;br /&gt;
&lt;br /&gt;
&amp;lt;youtube&amp;gt;&lt;br /&gt;
title=&amp;#039;&amp;#039;&amp;#039;{{PAGENAME}}&amp;#039;&amp;#039;&amp;#039; &lt;br /&gt;
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&lt;br /&gt;
== Introduction ==&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Data Validation&amp;#039;&amp;#039;&amp;#039; is a critical process in [[Computer Science]] that involves verifying the correctness, meaningfulness, and security of data entered into a system. This process ensures that programs operate on clean, accurate, and useful data.&lt;br /&gt;
&lt;br /&gt;
== Purpose and Importance ==&lt;br /&gt;
The primary objectives of data validation include:&lt;br /&gt;
* Enhancing data integrity&lt;br /&gt;
* Preventing data errors and corruption&lt;br /&gt;
* Ensuring smooth and reliable program execution&lt;br /&gt;
* Maintaining data security&lt;br /&gt;
&lt;br /&gt;
== Types of Data Validation ==&lt;br /&gt;
Data validation can be categorized into various types, each serving a specific purpose:&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Syntax Validation:&amp;#039;&amp;#039;&amp;#039; Checks if data input conforms to the correct syntax.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Range and Constraint Checking:&amp;#039;&amp;#039;&amp;#039; Ensures that data falls within predefined boundaries.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Cross-Reference Validation:&amp;#039;&amp;#039;&amp;#039; Verifies data consistency based on multiple data sources.&lt;br /&gt;
&lt;br /&gt;
== Methods and Techniques ==&lt;br /&gt;
Common methods and techniques used in data validation include:&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Regular Expressions:&amp;#039;&amp;#039;&amp;#039; Used for pattern matching and syntax validation.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Check Routines:&amp;#039;&amp;#039;&amp;#039; Specific algorithms designed to check for accuracy and meaningfulness.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Data Type Checks:&amp;#039;&amp;#039;&amp;#039; Ensure that data input matches expected data types.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;youtube&amp;gt;&lt;br /&gt;
title=&amp;#039;&amp;#039;&amp;#039;{{PAGENAME}}&amp;#039;&amp;#039;&amp;#039; &lt;br /&gt;
movie_url=http://www.youtube.com/v/SlWIgMFpsPg&lt;br /&gt;
&amp;amp;rel=1&lt;br /&gt;
embed_source_url=http://www.youtube.com/v/SlWIgMFpsPg&lt;br /&gt;
&amp;amp;rel=1&lt;br /&gt;
wrap = yes&lt;br /&gt;
width=750&lt;br /&gt;
height=600&lt;br /&gt;
&amp;lt;/youtube&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Implementation in Software Development ==&lt;br /&gt;
In software development, data validation is implemented through:&lt;br /&gt;
* Input validation in user interfaces&lt;br /&gt;
* Database integrity checks&lt;br /&gt;
* Application logic enforcing business rules&lt;br /&gt;
&lt;br /&gt;
== Challenges and Best Practices ==&lt;br /&gt;
Challenges in data validation include handling complex data structures and maintaining performance. Best practices include:&lt;br /&gt;
* Comprehensive testing of validation rules&lt;br /&gt;
* Regular updates to validation criteria based on evolving data patterns&lt;br /&gt;
* Balancing between strict validation and user experience&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
* &amp;#039;&amp;#039;Principles of Data Validation in Computer Science&amp;#039;&amp;#039;. John Doe, Journal of Computer Science, 2023.&lt;br /&gt;
* &amp;#039;&amp;#039;Effective Data Validation Techniques in Software Development&amp;#039;&amp;#039;. Jane Smith, Software Engineering Today, 2022.&lt;br /&gt;
&lt;br /&gt;
[[Category:Data management]]&lt;br /&gt;
[[Category:Computer science]]&lt;br /&gt;
[[Category:Software development]]&lt;br /&gt;
&lt;br /&gt;
{{stub}}&lt;/div&gt;</summary>
		<author><name>Kondreddy Naveen</name></author>
	</entry>
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