SQL SELECT FIRST

Have you ever wondered how to retrieve the initial records from a database quickly and effectively? Look no further! In this article, we dive into the powerful world of SQL SELECT FIRST and its significance in database queries. Discover how this feature can streamline your data retrieval process, saving you time and effort.

Whether you’re a seasoned SQL professional or a newcomer to the world of databases, understanding how to retrieve the first records is crucial. SQL SELECT FIRST allows you to specify the number of records you want to retrieve from a database in an efficient manner.

Are you ready to enhance your querying skills and unlock faster results? Let’s explore the ins and outs of SQL SELECT FIRST together!

Table of Contents

Key Takeaways:

  • SQL SELECT FIRST enables users to retrieve the initial records from a database efficiently.
  • Understanding SQL select statements is crucial for mastering database querying and data retrieval.
  • SQL SELECT FIRST has various applications, including filtering and sorting initial records.
  • Combining SQL SELECT FIRST with other SQL statements expands its capabilities and flexibility.
  • Optimizing SQL SELECT FIRST usage can significantly improve performance in database queries.

Understanding SQL Select Statements

In the world of database querying and data retrieval, SQL select statements play a fundamental role. These powerful statements allow users to extract specific data from a database by specifying the desired columns, tables, and conditions. Understanding SQL select statements is crucial for anyone working with databases, as it forms the foundation for retrieving the exact information needed.

SQL select statements can be thought of as the “heart” of querying a database. They allow users to define the data they want to retrieve and the criteria that must be met. By combining different clauses such as SELECT, FROM, WHERE, and ORDER BY, users can filter, sort, and limit the data to meet their requirements.

“SQL select statements are like a magic wand that grants access to the vast amount of data stored in databases. With the right combination of clauses and conditions, you can retrieve specific information efficiently.”

When querying a database, SQL select statements act as a powerful tool for retrieving data in a structured and organized manner. By utilizing various clauses and operators, users can easily retrieve records that meet specific criteria, aggregate data, and perform calculations.

Moreover, SQL select statements are not limited to simple data retrieval. They can also be used to perform calculations and transformations on retrieved data, allowing for the creation of meaningful insights and analysis. With the flexibility and versatility offered by SQL select statements, users can tailor their queries to retrieve the precise information they need.

The Purpose of SQL SELECT FIRST

SQL SELECT FIRST serves a crucial purpose in database queries by allowing efficient retrieval of the initial records. When working with large databases containing extensive amounts of data, it becomes essential to target and retrieve specific initial records quickly. This is where SQL SELECT FIRST comes into play, enabling users to extract the earliest or first records from a database table.

Efficient querying is a critical aspect of database management, ensuring speedy retrieval of data and optimizing overall performance. By utilizing SQL SELECT FIRST, users can dramatically reduce the time and resources required to retrieve the initial set of records for further analysis or processing.

Retrieving the initial records swiftly is particularly beneficial when dealing with time-sensitive information or when exploring large datasets. SQL SELECT FIRST allows users to narrow down their focus and obtain crucial data points promptly, enabling faster decision-making and enhancing overall operational efficiency.

“SQL SELECT FIRST is a valuable tool for efficient querying as it allows users to quickly retrieve the initial records from a database table.”

Efficiency remains a top priority in database management, and SQL SELECT FIRST plays a pivotal role in achieving this goal. With its purpose rooted in initial record retrieval, this feature empowers users to extract relevant data at a rapid pace, enabling efficient analysis, reporting, and decision-making processes.

Syntax and Usage of SQL SELECT FIRST

When using SQL, the SELECT statement is a fundamental tool for retrieving data from a database. To retrieve the first records from a table, you can incorporate the SELECT FIRST feature into your query. This section will cover the syntax and usage of SQL SELECT FIRST, providing you with examples and guidelines to effectively retrieve the desired initial records.

To use SQL SELECT FIRST, you need to follow a specific syntax. Here is the basic structure of a query:

SELECT FIRST n columns FROM table;

In the syntax above, n represents the number of records you want to retrieve. Specify the desired number after the SELECT FIRST statement. The columns refer to the specific columns you want to select from the table, and table represents the name of the table where the data is stored.

Here is an example of how to use SQL SELECT FIRST to retrieve the first three records from a table called customers:

SELECT FIRST 3 customer_name, email, phone_number FROM customers;

This example will retrieve the customer names, email addresses, and phone numbers of the first three customers in the customers table.

It’s important to note that the syntax and usage of SQL SELECT FIRST may vary slightly depending on the specific database management system (DBMS) or programming language you are using. Always consult the documentation or resources provided by the DBMS or programming language to ensure accurate syntax and usage.

Guidelines for Using SQL SELECT FIRST:

  • Make sure the table you are querying actually contains the desired number of records to retrieve using SELECT FIRST.
  • Ensure that the specified columns in the SELECT statement exist in the table and are spelled correctly to avoid errors.
  • Consider combining SQL SELECT FIRST with other SQL statements, such as WHERE or ORDER BY, to further filter or sort the retrieved records.
  • Test your SELECT FIRST queries with various scenarios to ensure the desired results are achieved and the performance is optimized.

By understanding the syntax and usage of SQL SELECT FIRST, you can effectively retrieve the initial records you need from a database and streamline your data retrieval process.

Pros Cons
Efficiently retrieve the initial records from a database. Must ensure that the desired number of records exists in the queried table.
Flexible enough to be combined with other SQL statements for more refined queries. Syntax and usage may vary slightly depending on the database management system or programming language.

Filtering with SQL SELECT FIRST

In SQL, the SELECT FIRST statement not only allows you to retrieve the initial records efficiently but also provides the flexibility to filter those records based on specific conditions. By leveraging conditional querying, you can narrow down the results to meet your exact requirements.

Filtering records with SQL SELECT FIRST involves determining the criteria that the records must meet in order to be included in the result set. You can apply a range of comparison operators, such as equals (=), not equals (!=), less than (), and more. Additionally, you can combine multiple conditions using logical operators such as AND and OR to create more complex filters.

Setting Conditions with SQL SELECT FIRST

When setting conditions in SQL SELECT FIRST, you can use the WHERE clause to specify the filtering criteria. This clause allows you to include one or more conditions that the records must satisfy to be included in the result set. For example, if you want to retrieve the first 100 records from a table where the age is greater than 30, you can use the following query:

SELECT FIRST 100 * FROM table_name WHERE age > 30;

This query will return the first 100 records from the specified table where the age column is greater than 30.

Excluding Records with SQL SELECT FIRST

If you want to exclude certain records from the result set, you can utilize the NOT operator in your conditions. This allows you to define the criteria that the records must not meet in order to be included. For example, if you want to retrieve the first 50 records where the status is not ‘inactive’, you can use the following query:

SELECT FIRST 50 * FROM table_name WHERE NOT status = ‘inactive’;

This query will retrieve the first 50 records from the specified table where the status column is not equal to ‘inactive’.

Combining Conditions with SQL SELECT FIRST

In more complex scenarios, you may need to combine multiple conditions to filter the records effectively. You can use logical operators such as AND and OR to achieve this. For example, if you want to retrieve the first 50 records where the age is greater than 30 and the status is ‘active’, you can use the following query:

SELECT FIRST 50 * FROM table_name WHERE age > 30 AND status = ‘active’;

This query will retrieve the first 50 records from the specified table where the age column is greater than 30 and the status column is ‘active’.

Filtering with SQL SELECT FIRST – Example

Name Age Status
John 25 active
Sarah 35 inactive
Michael 40 active
Jennifer 29 active
David 45 inactive

Suppose we have a table containing information about individuals, including their names, ages, and statuses. If we want to retrieve the first 3 records where the age is less than 40 and the status is ‘active’, we can use the following query:

SELECT FIRST 3 * FROM individuals WHERE age

The resulting table would look like this:

Name Age Status
John 25 active
Jennifer 29 active

In this example, the query filters the records based on the specified conditions, returning only the first 3 records where the age is less than 40 and the status is ‘active’.

Sorting Results with SQL SELECT FIRST

When using SQL SELECT FIRST to retrieve initial records from a database, it is often desirable to display the results in a specific order. Sorting the retrieved records allows for better organization and easier analysis of data. By incorporating sorting techniques into your SQL queries, you can order the initial records based on specific criteria that align with your needs.

To achieve sorting with SQL SELECT FIRST, the ORDER BY clause is utilized. This clause allows you to specify columns or expressions to sort the retrieved records in ascending or descending order. By default, the records are sorted in ascending order, but you can specify the sort direction explicitly.

Let’s consider an example where you have a table called “Customers” with columns such as “CustomerID,” “FirstName,” “LastName,” and “OrderDate.” You want to retrieve the first 10 customers with the most recent orders. To accomplish this, you can use the following SQL query:

SELECT FIRST 10 * FROM Customers ORDER BY OrderDate DESC;

This query retrieves the first 10 records from the “Customers” table and orders them in descending order based on the “OrderDate” column. The result will show the customers with the most recent orders at the top.

In some cases, you may want to sort the records based on more than one column. By including multiple columns in the ORDER BY clause, you can establish a hierarchical order for the records. The records will be sorted based on the first column, and if there are any ties, they will be further sorted based on the subsequent columns.

Here is an example of how you can sort the “Customers” table by the “FirstName” column in ascending order, followed by the “LastName” column in descending order:

SELECT * FROM Customers ORDER BY FirstName ASC, LastName DESC;

By employing the ORDER BY clause, you can effectively sort the initial records retrieved with SQL SELECT FIRST, enabling you to present the data in the desired order that suits your analysis and reporting requirements.

Limiting the Number of Records with SQL SELECT FIRST

When working with SQL SELECT FIRST, it’s essential to have control over the number of records returned. By limiting the results to a specified quantity, you can retrieve only the data you need, saving resources and improving query efficiency. Let’s explore some efficient ways to achieve this.

Method 1: Using the LIMIT Clause

One approach to restrict the number of records with SQL SELECT FIRST is by using the LIMIT clause. This clause allows you to specify the maximum number of rows to retrieve from the result set.

Example:

To retrieve only the first 10 records from a table called “customers,” you can use the following query:

SELECT * FROM customers LIMIT 10;

Method 2: Applying the TOP Clause

In certain database systems like Microsoft SQL Server, you can utilize the TOP clause to limit the number of records returned by a SELECT statement.

Example:

To retrieve the top 5 records from a table called “products,” you can use the following query:

SELECT TOP 5 * FROM products;

Method 3: Adding a WHERE Clause with Row Number

Another effective approach involves combining the WHERE clause with the ROW_NUMBER function to achieve the desired result.

Example:

To retrieve the first 3 records from a table called “orders,” you can use the following query:

SELECT * FROM (
    SELECT *, ROW_NUMBER() OVER(ORDER BY order_date) AS rn
    FROM orders
  ) AS subquery
  WHERE rn <= 3;

These methods provide efficient ways to limit the number of records returned using SQL SELECT FIRST, allowing you to retrieve a specified quantity of data. By employing the appropriate approach based on your database system, you can optimize your queries and streamline your data retrieval process.

Method Usage Pros Cons
LIMIT Clause SQL standard – Simplifies query syntax
– Compatible with various database systems
– Not supported in all database platforms
TOP Clause Microsoft SQL Server – Provides a concise way to limit results
– Easy to understand and implement
– Specific to Microsoft SQL Server
WHERE Clause with Row Number SQL standard – Offers flexibility in specifying conditions
– Works across different database systems
– Requires additional syntax

Handling NULL Values with SQL SELECT FIRST

When using SQL SELECT FIRST, one common challenge is dealing with NULL values in the retrieved initial records. NULL values represent missing or unknown data, and they can have a significant impact on query results if not handled correctly. This section will explore techniques for effectively handling NULL values with SQL SELECT FIRST, ensuring they are either included or excluded from the retrieved initial records.

Ignoring NULL Values

One approach to handling NULL values in SQL SELECT FIRST is to ignore them completely. By excluding NULL values from the initial records, you can focus on the non-null data and achieve more accurate results.

“To ignore NULL values in SQL SELECT FIRST, you can use the IS NOT NULL condition in the WHERE clause. This condition restricts the query to retrieve only the records with non-null values, effectively excluding any NULL values from the result set.”

Here is an example of how the IS NOT NULL condition can be used:

id name age
1 John Doe 25
2 Jane Smith NULL
3 Mike Johnson 30

In the above example, if you want to retrieve the initial record with the oldest age, ignoring NULL values, you can use the following SQL query:

SELECT id, name, age
FROM users
WHERE age IS NOT NULL
ORDER BY age ASC
LIMIT 1;

The query will return the record with ID 1, “John Doe”, and age 25, as it is the oldest non-null age in the table.

Including NULL Values

On the other hand, there may be cases where you want to include NULL values in the retrieved initial records. This can be useful when analyzing or interpreting data that contains missing values.

“To include NULL values in SQL SELECT FIRST, you may use the IS NULL condition in the WHERE clause. This condition allows you to retrieve records that have NULL values in the specified column.”

Here is an example of how the IS NULL condition can be used:

id name country
1 John Doe USA
2 Jane Smith NULL
3 Mike Johnson UK

In the above example, if you want to retrieve the initial record with the first occurrence of a NULL country, you can use the following SQL query:

SELECT id, name, country
FROM users
WHERE country IS NULL
ORDER BY id ASC
LIMIT 1;

The query will return the record with ID 2, “Jane Smith”, and a NULL value for the country, as it is the first record with a NULL country in the table.

Summary

Handling NULL values when using SQL SELECT FIRST is crucial for accurate and meaningful data analysis. By either ignoring or including NULL values, you can tailor your queries to suit specific requirements and retrieve the desired initial records. Remember to use the IS NOT NULL condition to exclude NULL values and the IS NULL condition to include them, depending on your use case and objectives.

Combining SQL SELECT FIRST with Other SQL Statements

When working with complex database queries, it’s often necessary to combine SQL SELECT FIRST with other SQL statements to retrieve specific records efficiently. By leveraging the power of JOIN, WHERE, and other clauses, you can enhance the functionality of SQL SELECT FIRST and extract even more valuable insights from your data.

One common scenario where combining SQL SELECT FIRST proves useful is when you want to retrieve the first record from each group in a result set. By using the GROUP BY clause alongside SQL SELECT FIRST, you can aggregate data and obtain the initial record for each group based on specific criteria.

“SELECT * FROM table1
JOIN table2 ON table1.id = table2.id
WHERE table1.column1 = ‘value’
GROUP BY table1.column2
SELECT FIRST 1 *”

In the example above, the SQL SELECT FIRST statement is combined with JOIN, WHERE, and GROUP BY clauses to fetch the first record from each group where table1.column1 equals ‘value’.

Another common use case is when you want to retrieve the initial records that satisfy certain conditions specified in the WHERE clause. Let’s say you want to find the first record that meets a specific criterion. By utilizing SQL SELECT FIRST in conjunction with the WHERE clause, you can easily accomplish this task.

“SELECT * FROM table
WHERE condition = ‘value’
SELECT FIRST 1 *”

In the example above, the SQL SELECT FIRST statement is combined with the WHERE clause to retrieve the first record from the table that satisfies the condition specified.

Additionally, SQL SELECT FIRST can be used in combination with other SQL statements, such as ORDER BY, to sort the initial records in a desired order. This allows you to control the sequence in which the first records are displayed, further enhancing the visualization of your data.

“SELECT * FROM table
ORDER BY column ASC
SELECT FIRST 1 *”

In the example above, the SQL SELECT FIRST statement is combined with the ORDER BY clause to sort the records in ascending order based on a specified column, and then retrieve the first record.

By combining SQL SELECT FIRST with other SQL statements, you can unlock a multitude of possibilities for extracting valuable insights from your database. Whether you’re aggregating data, applying conditions, or sorting results, the versatility of SQL SELECT FIRST allows you to tailor your queries to your specific needs.

SQL SELECT FIRST Statement Combined with Functionality
JOIN Allows you to retrieve the first record from each group based on specific criteria. Grouping and Aggregating Data
WHERE Retrieves the first record that satisfies the conditions specified in the WHERE clause. Condition-based Retrieval
ORDER BY Sorts the initial records in a desired order before retrieving the first record. Ordering Initial Records

Performance Considerations for SQL SELECT FIRST

In order to optimize the retrieval of initial records using SQL SELECT FIRST, there are several performance considerations to keep in mind. By implementing these tips and strategies, you can maximize the efficiency and speed of your database queries.

1. Indexing:

One of the key factors that can affect the performance of SQL SELECT FIRST is indexing. Make sure that your database tables are properly indexed, especially on the columns that you frequently use in your SELECT queries. This will significantly improve the retrieval speed of the initial records.

2. Selective Projection:

When retrieving initial records using SQL SELECT FIRST, it is important to only select the columns that you actually need. Avoid selecting unnecessary columns as this can lead to increased processing time and network overhead. Selective projection ensures that only the required data is retrieved, resulting in improved performance.

3. Query Optimization:

Optimizing your SQL queries is crucial for improving performance. Ensure that your SELECT queries are properly optimized by avoiding unnecessary joins, reducing the number of subqueries, and using appropriate indexes. By fine-tuning your queries, you can minimize the time taken to retrieve initial records.

4. Data Volume:

The amount of data in your database can impact the performance of SQL SELECT FIRST. If you have a large volume of data, consider implementing techniques such as data partitioning or using faster storage systems to improve query execution time. Managing and optimizing the data volume plays a significant role in optimizing performance.

5. Caching:

Implementing caching mechanisms can greatly enhance the retrieval of initial records. By caching frequently accessed data, you can reduce the number of database queries and minimize the overall response time. Consider utilizing caching technologies such as Redis or Memcached to speed up the retrieval process.

Incorporating these performance considerations into your usage of SQL SELECT FIRST will help you optimize the retrieval of initial records and improve the overall efficiency of your database queries.

Using SQL SELECT FIRST in Different Database Platforms

When it comes to using SQL SELECT FIRST, it’s important to understand that different database platforms may have their own variations and considerations. By familiarizing yourself with the specific guidelines for each platform, you can ensure that your queries are optimized and perform efficiently.

Let’s take a look at some popular database platforms and how they handle the SQL SELECT FIRST feature:

1. MySQL: In MySQL, you can use the “LIMIT” clause to retrieve the first set of records from your query. For example, “SELECT * FROM table_name LIMIT 1;” will return the first record from the specified table.

2. Oracle: Oracle uses a different approach to select the first record. You can leverage the “ROWNUM” keyword in combination with the “ORDER BY” clause to achieve this. For instance, “SELECT * FROM table_name WHERE ROWNUM = 1 ORDER BY column_name;” will retrieve the first record based on the specified sorting criteria.

3. SQL Server: In SQL Server, the “TOP” keyword allows you to select the desired number of first records. For example, “SELECT TOP 1 * FROM table_name;” will fetch the first record from the specified table.

4. PostgreSQL: PostgreSQL provides the “LIMIT” clause, similar to MySQL, to retrieve the initial records. You can use the query “SELECT * FROM table_name LIMIT 1;” to fetch the first record from the table.

These are just a few examples of how different database platforms handle SQL SELECT FIRST. It’s crucial to consult the documentation or resources specific to your chosen platform to ensure accuracy and to leverage any platform-specific optimizations.

By understanding the nuances of using SQL SELECT FIRST in different platforms, you can confidently utilize this feature to retrieve the initial records effectively and efficiently.

Best Practices for Using SQL SELECT FIRST

Optimizing the usage of SQL SELECT FIRST is crucial for efficient and effective database queries. By following these best practices, you can enhance the performance and accuracy of your initial record retrieval process.

  1. Understanding your data: Before utilizing SQL SELECT FIRST, it’s essential to have a clear understanding of the data you’re working with. Analyze the structure, complexity, and relationships within your database to determine the most appropriate use cases for this feature.
  2. Refining your criteria: To maximize the usefulness of SQL SELECT FIRST, carefully define your selection criteria. Specify the specific conditions, such as filters or sorts, that will retrieve the desired initial records accurately. This will prevent unnecessary data extraction and improve query performance.
  3. Index optimization: Indexes play a vital role in optimizing SQL SELECT FIRST queries. Ensure that the columns referenced in your selection criteria have proper indexes in place. Index optimization can significantly enhance query execution speed and overall database performance.
  4. Testing and fine-tuning: As with any database query, testing and fine-tuning are crucial for optimizing SQL SELECT FIRST’s usage. Experiment with different strategies, monitor query performance, and make incremental adjustments to improve efficiency and accuracy.
  5. Limiting record retrieval: When using SQL SELECT FIRST, it’s important to consider the necessary number of initial records you need. Limiting the number of records retrieved can help reduce resource consumption, enhance response times, and improve overall query performance.
  6. Documentation and code readability: Maintain clear documentation and ensure your SQL code is easily readable and understandable. By adopting proper naming conventions, providing comments, and organizing code structure, you can facilitate collaboration and future maintenance efforts.
  7. Regular performance monitoring: Continuously monitoring the performance of SQL SELECT FIRST queries is essential to identify bottlenecks, maintain optimal performance, and detect any potential issues. Use database performance monitoring tools to analyze query execution times, identify inefficient queries, and optimize accordingly.

Remember, efficient usage of SQL SELECT FIRST involves understanding your data, refining your criteria, optimizing indexes, testing and fine-tuning, limiting record retrieval, ensuring documentation and code readability, and regular performance monitoring. By following these best practices, you can leverage the full potential of SQL SELECT FIRST in your database queries and achieve optimal results.

Conclusion

In conclusion, SQL SELECT FIRST is a powerful feature in database querying that allows users to efficiently retrieve initial records. Throughout this article, we have explored the various aspects of SQL SELECT FIRST, highlighting its syntax, usage, and benefits.

By employing SQL SELECT FIRST, users can filter and sort their results, limit the number of records returned, and handle NULL values effectively. Additionally, we have discussed how SQL SELECT FIRST can be combined with other SQL statements to enhance its functionality.

Optimizing the performance of SQL SELECT FIRST is crucial, and we have provided valuable tips and best practices to ensure efficient initial record retrieval. It is important to note that different database platforms may have variations in using SQL SELECT FIRST, and users should consider any platform-specific considerations.

In summary, SQL SELECT FIRST offers a comprehensive solution for retrieving initial records, enabling users to streamline their database querying processes with ease. By applying the concepts and techniques discussed in this article, users can harness the full potential of SQL SELECT FIRST and enhance their overall database management efficiency.

FAQ

What is SQL SELECT FIRST?

SQL SELECT FIRST is a feature that allows users to retrieve the initial records from a database effectively. It is used in database queries to specify that only the first few records should be returned.

What are SQL select statements?

SQL select statements are used for querying databases and retrieving specific data. They play a crucial role in data retrieval and provide the flexibility to select specific fields and filter data based on specified conditions.

Why is SQL SELECT FIRST important?

SQL SELECT FIRST is important because it enables efficient retrieval of the initial records from a database. It helps optimize the querying process by limiting the number of records returned, reducing the amount of data that needs to be processed.

What is the syntax for SQL SELECT FIRST?

The syntax for SQL SELECT FIRST is as follows: SELECT FIRST n * FROM table_name; Here, n represents the number of records you want to retrieve from the table.

How can SQL SELECT FIRST be used for filtering records?

SQL SELECT FIRST can be used for filtering records by incorporating filtering conditions in the WHERE clause of the query. This allows you to specify criteria that must be met for the initial records to be retrieved.

How can I sort the results when using SQL SELECT FIRST?

To sort the results when using SQL SELECT FIRST, you can include an ORDER BY clause in your query. This allows you to specify the sorting criteria for the initial records retrieved.

Can I limit the number of records returned by SQL SELECT FIRST?

Yes, you can limit the number of records returned by SQL SELECT FIRST by specifying the desired number in the query. For example, if you want to retrieve only the first 10 records, you can use the syntax SELECT FIRST 10 * FROM table_name;

How can NULL values be handled when using SQL SELECT FIRST?

NULL values can be handled when using SQL SELECT FIRST by including additional conditions in the WHERE clause to handle null values explicitly. This allows you to include or exclude NULL values based on your requirements.

Can SQL SELECT FIRST be used with other SQL statements?

Yes, SQL SELECT FIRST can be combined with other SQL statements like JOIN, WHERE, and other clauses to enhance the functionality of your query. This allows you to retrieve the initial records based on specific conditions or in conjunction with other operations.

What are some performance considerations for SQL SELECT FIRST?

When using SQL SELECT FIRST, it is important to consider the performance of your query. Some best practices include optimizing your database indexes, minimizing the use of subqueries, and optimizing the ORDER BY clause for improved performance.

How can SQL SELECT FIRST be used in different database platforms?

SQL SELECT FIRST can be used in different database platforms, but there may be some variations in syntax and behavior. It is essential to consult the documentation or resources specific to your database platform to understand how to use SQL SELECT FIRST effectively.

What are some best practices for using SQL SELECT FIRST?

Some best practices for using SQL SELECT FIRST include using it only when necessary, utilizing appropriate indexes, optimizing your query by limiting the retrieved columns, and incorporating proper error handling.

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Deepak Vishwakarma

Founder

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