How to extract the string before a comma in Oracle?
In Oracle, you can use the SUBSTR and INSTR functions to extract the string before the comma.
The specific steps are as follows:
- Use the INSTR function to locate the position of the first comma in the string.
- Use the SUBSTR function to retrieve the substring from the beginning of the string up to right before the comma.
Here is an example:
SELECT SUBSTR(column_name, 1, INSTR(column_name, ',')-1) AS substring
FROM table_name
Please replace column_name with the name of the string column to be truncated, and table_name with the corresponding table name.
This will return the substring before the comma.