![]() In this example, the TO_NUMBER() function will convert the given string (i.e., 572,7212.016-) into a number. Suppose we have to convert a string(“572,7212.016-”) into a number, but we don’t need the decimal part of the given string: SELECT TO_NUMBER('-512,7512.014', 'S999G9999') The output clarified that the TO_NUMBER function successfully converted the given string into a number.Įxample #2: How to Convert a String into an Integer/Numeric Value(Skip the Floating Points)? Since we have a negative number, we will get a minus sign. ![]() Three 9’s after the D represent that there will be three digits after the fractional part. D after four 9’s represents that there will be a decimal point after four digits. The four 9’s after the G symbol represent that there are four more digits after the group separator. G at the fourth position represents that three will be a group separator “,” at the fourth position. Three 9’s at the start represent that there are three digits at the start of the string. The stepwise description of the specified format is as follows: ![]() We utilized the “999G9999D999S” format to convert the user-specified string into a number. In the above example, “573,7212.016-” is a string that needs to be converted into a number. Let’s convert the given string into a numeric value using the following statement: SELECT TO_NUMBER('572,7212.016-', '999G9999D999S') Now, let’s understand the working of the TO_NUMBER() function by implementing it practically.Įxample #1: How to Use the TO_NUMBER Function in Postgres? TH/th represents the ordinal number suffix. PR represents a negative value within angle brackets. MI represents a minus sign for the numbers less than 0(negative numbers). PL represents a plus sign for numbers greater than 0(positive numbers). FM(Fill mode) deletes the leading/trailing spaces. RN represents a roman value between the range ‘1-3999’. G represents a group separator that utilizes locale. Comma “,” represents a group separator. 0 represents a number with leading 0’s. D represents a decimal that utilizes a locale. Here is the list of valid formats for the TO_NUMBER() function: The targeted string/text will be converted into a number according to the given format. The second parameter must be a valid format. “str” represents a string/text to be converted. Here, TO_NUMBER() is a built-in Postgres Function that requires the following parameters: The basic syntax of the TO_NUMBER() function will be as follows: TO_NUMBER(str, format) How to Use the TO_NUMBER() in PostgreSQL? This write-up will explain the working of the TO_NUMBER function with the help of different examples. While the second parameter represents a “format” based on which the targeted string will be converted. The TO_NUMBER() function accepts two parameters, i.e., the first parameter is a “string” that needs to be converted. In Postgres, TO_NUMBER() is a built-in function that converts a string/text into a number.
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