How to set numbers to retain integers in Oracle

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 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>

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>

3. Query data

Query the table to display the original number:

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

Result:

<code>123.45</code>

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>

Result:

<code>123</code>

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>

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>

Result:

<code>123</code>

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

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