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:
CREATE TABLE my_table ( my_number NUMBER(10, 0) );
2. Insert data
Insert a number with a decimal part into the table:
INSERT INTO my_table (my_number) VALUES (123.45);
3. Query data
Query the table to display the original number:
SELECT my_number FROM my_table;
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:
SELECT TO_NUMBER(my_number) FROM my_table;
Result:
<code>123</code>
5. Update data
Use the UPDATE
statement to update the data in the table to retain only the integer part:
UPDATE my_table SET my_number = TO_NUMBER(my_number);
6. Query the data again
Query the table to verify that the data has been updated as an integer:
SELECT my_number FROM my_table;
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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