# How do I fix varchar to numeric?

## How do I fix varchar to numeric?

In order to resolve the conversion error, you just need to remove the comma (,) from the varchar value that you want to convert to numeric. Note: At this point, you also need to make sure that the varchar value to be converted, is the actual number you wish to convert to the numeric data type.

**How do you fix an arithmetic overflow error in SQL?**

The SQL Server throws the error because we are trying to store 1000 but the maximum value a NUMERIC (5,2) can hold is 999 before the decimal point. You need to increase the width of the variable to store this number e.g. making @sample NUMERIC (6,2) will solve this error.

### How can we avoid arithmetic overflow in SQL?

The solution to avoid this arithmetic overflow error is to change the data type from INT to BIGINT or DECIMAL(11,0) for example.

**What is arithmetic overflow error?**

The error “Arithmetic overflow error converting IDENTITY to data type int” comes when the IDENTITY value is inserted into a column of data type int, but the value is out-of-range.

## Is not numeric in SQL?

In SQL Server, you can use the ISNUMERIC() function to find out whether an expression is numeric or not. The function returns 1 if the expression is numeric, and 0 if it’s not. To use this function, simply pass the value/expression to the function while calling it.

**How do you solve arithmetic overflow error converting numeric to data type numeric?**

You can do this by increasing the precision (which is the total number of digits before and after the decimal). You can leave the scale the same unless you need to alter how many decimal places to store. Try decimal(9,2) or decimal(10,2) or whatever.

### What happens when int overflows Java?

If it overflows, it goes back to the minimum value and continues from there. If it underflows, it goes back to the maximum value and continues from there. If you think that this may occur more than often, then consider using a datatype or object which can store larger values, e.g. long or maybe java.

**Is NULL a numeric value?**

A null value in a relational database is used when the value in a column is unknown or missing. A null is neither an empty string (for character or datetime data types) nor a zero value (for numeric data types).

## How do I change an empty string to NULL?

You need to use NULLIF() function from MySQL. The syntax is as follows: SELECT NULLIF(yourCoumnName,’ ‘) as anyVariableName from yourTableName; In the above syntax, if you compare empty string( ‘ ‘) to empty string( ‘ ‘), the result will always be NULL.