Home > Database > Oracle > How to set numbers to retain integers in Oracle

How to set numbers to retain integers in Oracle

下次还敢
Release: 2024-04-30 06:45:25
Original
743 people have browsed it

In Oracle, you can set a numeric field to retain only the integer part through the following steps: 1. Create a numeric field, specify the precision and decimal places as 0; 2. Insert a number with a decimal part; 3. Use TO_NUMBER () function converts the data type to integer; 4. Updates the data in the table; 5. Query the data again to verify whether the update is successful. These steps ensure that numeric fields retain only the integer portion.

How to set numbers to retain integers in Oracle

How to set a number in Oracle to preserve an integer

The numeric field type in Oracle allows you to specify the precision of a number and decimal places. To set a number to keep only the integer part, you can use the following steps:

1. Create a table

Create a table with a numeric field:

<code class="sql">CREATE TABLE my_table (
  my_number NUMBER(10, 0)
);</code>
Copy after login

2. Insert data

Insert a number with a decimal part into the table:

<code class="sql">INSERT INTO my_table (my_number) VALUES (123.45);</code>
Copy after login

3. Query data

Query the table to display the original number:

<code class="sql">SELECT my_number FROM my_table;</code>
Copy after login
Copy after login

Result:

<code>123.45</code>
Copy after login

4. Convert the data type

Use TO_NUMBER() The function converts the number to an integer type, retaining only the integer part:

<code class="sql">SELECT TO_NUMBER(my_number) FROM my_table;</code>
Copy after login

Result:

<code>123</code>
Copy after login
Copy after login

5. Update data

Use the UPDATE statement to update the data in the table to retain only the integer part:

<code class="sql">UPDATE my_table SET my_number = TO_NUMBER(my_number);</code>
Copy after login

6. Query the data again

Query the table to verify that the data has been updated as an integer:

<code class="sql">SELECT my_number FROM my_table;</code>
Copy after login
Copy after login

Result:

<code>123</code>
Copy after login
Copy after login

By following these steps, you can set up numeric fields in Oracle Only the integer part is retained.

The above is the detailed content of How to set numbers to retain integers in Oracle. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template