<div id="readability-page-1" class="page"><div>

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bard를 쓸 수 있게 되서 써 봤는데, chatGPT 보다 속도가 좀 더 빠르고, chatGPT를 구독 할 이유가 없겠다 싶어졌다.
그리고 답변하는 퀄리티도 훨씬 좋은 것 같은데, 아래는 예시다.


Q)&nbsp;Please tell me the difference between MySQL 5.7 L and MySQL 8.0
A) ChatGPT
The differences between MySQL 5.7 and MySQL 8.0 can be categorized into performance improvements, new features, and security enhancements:
<ol data-ke-list-type="decimal">
<li>Performance improvements: MySQL 8.0 is more efficient in benchmarking tests and performs better for read/write workloads compared to MySQL 5.7[1].</li>
<li>New features: MySQL 8.0 introduces several new enhancements that were not present in MySQL 5.7[3]. For instance, MySQL 5.7 now has ONLY_FULL_GROUP_BY turned on by default, preventing the return of random data when a user has incorrectly specified columns in the WHERE clause but missed them in the GROUP BY clause[2].</li>
<li>Security enhancements: MySQL 8.0 features the caching_sha2_password authentication method, replacing the mysql_native_password method as the default authentication method[1]. This change improves security within the database system.</li>
</ol>
For a more detailed comparison of the features in MySQL 5.7 and MySQL 8.0, refer to their respective release notes and documentation.
A) Bard
Sure. Here are some of the major differences between MySQL 5.7 and MySQL 8.0:
<ul data-ke-list-type="disc">
<li>Performance:&nbsp;MySQL 8.0 is significantly faster than MySQL 5.7, especially for read/write workloads, IO bound workloads, and high contention "hot spot" workloads.</li>
<li>Security:&nbsp;MySQL 8.0 has a number of new security features, including:</li>
<li>A new authentication plugin called caching_sha2_password, which provides more secure password encryption than the mysql_native_password plugin.</li>
<li>Support for roles, which are named collections of privileges.</li>
<li>Support for JSON data types, which can be used to store sensitive data in a more secure way.</li>
<li>New features:&nbsp;MySQL 8.0 includes a number of new features, including:</li>
<li>Support for spatial data types, which can be used to store and query geographic data.</li>
<li>Support for JSON data types, which can be used to store and query semi-structured data.</li>
<li>Support for window functions, which can be used to perform aggregate calculations over groups of rows.</li>
<li>Support for stored procedures in a variety of languages, including Python, Go, and Java.</li>
<li>Deprecated features:&nbsp;MySQL 5.7 has a number of deprecated features that will be removed in future versions of MySQL. These features include:</li>
<li>The innodb_locks_unsafe_for_binlog system variable.</li>
<li>The use of GRANT to create users.</li>
<li>The use of GRANT to modify account properties other than privilege assignments.</li>
</ul>
Overall, MySQL 8.0 is a significant upgrade over MySQL 5.7. It offers better performance, security, and features. If you are running MySQL 5.7, I recommend upgrading to MySQL 8.0 as soon as possible.
</div>
Q) Please write regex Java code to extract cell phone number
A) ChatGPT
Extracting phone numbers from a string using regular expressions can be a challenging task, as there are various formats and conventions for phone numbers. However, there are some regular expression patterns that can be used to extract phone numbers from a string in Java.
One way to extract a phone number from a string is to use the regular expression pattern \d{10}, which matches any sequence of ten digits. This pattern can be used to extract a ten-digit phone number from a string, but it may also match other ten-digit sequences that are not phone numbers. To match a more specific phone number format, additional regular expression patterns can be used.
For example, the regular expression pattern (\d{3})[- ](\d{3})[- ](\d{4}) matches a phone number that is separated by either hyphens or spaces into three groups of three digits each. This pattern can be used to extract phone numbers that match the format "xxx-xxx-xxxx" or "xxx xxx xxxx".
Another regular expression pattern that can be used to extract phone numbers is (\d{3})[.]?(\d{3})[.]?(\d{4}), which matches a phone number that is separated by periods into three groups of three digits each. This pattern can be used to extract phone numbers that match the format "xxx.xxx.xxxx".
It's important to note that these regular expression patterns may not capture all possible phone number formats, and they may also match non-phone number sequences that happen to have the same pattern of digits. Therefore, it's always a good idea to test the regular expression pattern with various inputs to ensure that it correctly captures the desired phone numbers.
References:
[1] <a href="https://stackoverflow.com/questions/9464323/how-to-extract-a-phone-number-for-a-string-using-regular-expression">https://stackoverflow.com/questions/9464323/how-to-extract-a-phone-number-for-a-string-using-regular-expression</a> [2] <a href="https://stackoverflow.com/questions/29425421/extract-phone-number-from-string">https://stackoverflow.com/questions/29425421/extract-phone-number-from-string</a> [3] <a href="https://www.baeldung.com/java-regex-validate-phone-numbers">https://www.baeldung.com/java-regex-validate-phone-numbers</a>
A) Bard
<div>
Sure, here is the regex Java code to extract cell phone number:
<div>
<pre><code>import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RegexDemo {

 public static void main(String[] args) {
 String text = "This is my phone number: +1 (202) 555-1212.";

 Pattern pattern = Pattern.compile("(\\(\\d{3}\\))?\\d{3}-\\d{4}");
 Matcher matcher = pattern.matcher(text);

 while (matcher.find()) {
 System.out.println("Found phone number: " + matcher.group());
 }
 }
}
</code></pre>
</div>
This code will find and print all phone numbers in the given text. The regex pattern used is:
<div>
<pre><code>(\\(\\d{3}\\))?\\d{3}-\\d{4}
</code></pre>
</div>
This pattern matches a phone number in the following format:
<div>
<pre><code>(optional parenthesis)-(3 digits)-(3 digits)-(4 digits)
</code></pre>
</div>
For example, the following phone numbers would be matched by this pattern:
<div>
<pre><code>+1 (202) 555-1212
(202) 555-1212
202-555-1212
</code></pre>
</div>
The Matcher class provides a number of methods for extracting information from the matched text. In this example, we are using the group() method to extract the entire matched phone number.

단편적인 비교 일 수 있지만, 어쨌거나 chatGPT는 너무나 오류가 잦은게 문제다.
ChatGPT Plus 구독을 해도 오류 상황은 어쩔 수 없어가지고, 그냥 ChatGPT 무료 버전 + Bard 같이 쓰는게 좋은 것 같다는게 내 생각이다.
</div>
</div></div>

Seungdols Company

seungdols

#chatgpt #bard https://bard.google.com/ Bard Bard is your creative and helpful collaborator to supercharge your imagination, boost productivity, and bring ideas to life. bard.google.com bard를 쓸 수 있게 되서 써 봤는데, chatGPT 보다 속도가 좀 더 빠르고, chatGPT를 구독 할 이유가 없겠..            
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ChatGPT vs Bard

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