Return all numbers with more then 2 decimal digits in MySQL

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I have data similar to this in my database:

+----+----------------+
| id | summ (varchar) |
+----+----------------+
|  1 | 30.23          |
|  2 | 10.235         |
|  3 | 20.2300        |
|  4 | 100.005        |
|  5 | 5.031          |
|  6 | 0.0010002      |
+----+----------------+

How can I receive all data, in MySQL query that has more then 2 decimal digits ( zeros also count )?

At start I had to get only the ones, that have 3 digits and end with 5, so I used this command substring( summs * 100, -2 ) = '.5', but I have no idea how to get the various numbers.

You can do something like this :-

SELECT * 
FROM `table` 
WHERE LENGTH(SUBSTR(`summ `,INSTR(`summ `,"."))) >3

Select rows having more than 2 decimal places in MySQL?, with more than 2 decimal places, use SUBSTR() function from MySQL. Following is the query to display all records from the table using� How can I receive all data, in MySQL query that has more then 2 decimal digits ( zeros also count )? At start I had to get only the ones, that have 3 digits and end with 5, so I used this command substring( summs * 100, -2 ) = '.5', but I have no idea how to get the various numbers.

So you want the SQL query to exclude "20.23" but include "20.2300", yes?

Given that theses are strings, and not floating point numbers, you could use string functions in your query, specifically a combination of INSTR() and LENGTH(). Use the former to locate the decimal point (period) and then compare that to the length of the string (minus 2).

MySQL FORMAT() function, which is rounded upto the number of decimal places specified (in the D, An integer which specifies up to how many decimal places the return value is going to contain. books from the book_mast table, whose prices are more than 150. However I somehow get not all numbers formatted according to� I have 1000s' of rows of data and in amongst them one or more have been inputted incorrectly for our system with more than 2 decimal places. How do I find them? In other words . 100.00 - OK. 100.000 - I need to return these rows in a sql query (simple select statement preferably.)

You can do something like this also:

SELECT *
FROM tableName
WHERE columnName <> ROUND (columnName, 2)

MySQL TRUNCATE() function, MySQL TRUNCATE() returns a number after truncated to a certain The number and the number of decimal places are specified as Your use of w3resource Services, is subject to these policies More info will return a value truncating 142.465 up to -2 decimal places. All Mathematical Functions. P is the precision that represents the number of significant digits. The range of P is 1 to 65. D is the scale that that represents the number of digits after the decimal point. The range of D is 0 and 30. MySQL requires that D is less than or equal to (<=) P. The DECIMAL(P,D) means that the column can store up to P digits with D decimals. The

I guess the solution from @Rahul Tripathi is most probably the best.

But I tried something in a different context and found another possible solution based on the answers from this question: Store only numbers after Comma mysql

This solution is rather "heavily restricted" in which cases it would correctly work because of how MySQL works with and stores floating point values etc. etc.

Assuming that summ is a number (if a string, then casting is required or just use the solution from @Rahul Tripathi). And summ would be better to be a decimal number instead of float because of precision and storage reasons.

SELECT * 
FROM `table` 
WHERE (LENGTH(TRIM(TRAILING "0" from MOD(`summ`, 1))) - 2) > 2;

To test it:

set @fraction = 100.005;
set @modulo = mod(@fraction, 1);
set @modulo = trim(trailing "0" from @modulo);
set @decimals = length(@modulo) - 2;

select @fraction, @modulo, @decimals;
+-----------+---------+-----------+
| @fraction | @modulo | @decimals |
+-----------+---------+-----------+
|   100.005 |   0.005 |         3 |
+-----------+---------+-----------+
1 row in set (0.00 sec)

Note: casting with CAST("12.345" as DECIMAL(10,5)) requires prior knowledge about the number of digits than can appear. If you are computing the values in the database or cast them from a string with "12.345" + 0, it would somewhat work but because of how binary floating point numbers are stored, you would get something like: "12.345" + 012.34500000000000064 which would not be the anwser you may have wanted. You could then try to round again to remove digits after a certain possition and so on ...

MySQL FORMAT() Function, ##", rounded to a specified number of decimal places, then it returns the result as a string. Syntax. FORMAT(number, decimal_places). Parameter Values� I have a complicated query that returns a percentage but I need to have it return only 2 decimal places. I have searched the forums and trues truncate, round, cast, decimal, and a few others I am sure I am missing. I am at a complete loss as to where to go from here. The query is below. Any help would be greatly appreciated.

MySQL 5.7 Reference Manual :: 12.22.2 DECIMAL Data , D is the number of digits to the right of the decimal point (the scale). It has a range of 0 to 30 and must be no larger than M . If D is omitted, the default is 0. I am using sumif to verify some numbers. These should all be dollar values and thus should not contain and values past 2 decimal places however when I use the sumif it returns values with long decimals? I have been unable to find where these decimals exist visually and i tried this formula to help me identify them =IF(L18-(ROUND(L18,2))=0,0,"Help")

MySQL ROUND() Function Explained By Examples, If it is negative, then the d digits left of the decimal point of the number n becomes zero. SELECT ROUND(121.55,-2) -- 100. The ROUND() function returns a number which has the same data type as the number to be It means the value of the fractional part of .5 or greater is rounded up to the next All Rights Reserved. For negative numbers, a literal -character is not stored. DECIMAL columns do not permit values larger than the range implied by the column definition. For example, a DECIMAL(3,0) column supports a range of -999 to 999. A DECIMAL(M,D) column permits up to M - D digits to the left of the decimal point.

MySQL DECIMAL Data Type, P is the precision that represents the number of significant digits. MySQL requires that D is less than or equal to (<=) P. In this example, the amount column can store 6 digits with 2 decimal places; The integer part requires 4 bytes for the first 9 digits, for 1 leftover digit, it requires 1 more byte. All Rights Reserved. The number of decimal places to round number to. If omitted, it returns the integer (no decimals) Technical Details. Works in: From MySQL 4.0: More Examples. Example.

Comments
  • You can subtract an appropriately 'floored' value. Anything with a non-zero result will be what you're after.
  • Thank you. I just changed >2 to >3 and it all worked, since >2 also includes the . in it's query and returns 2+, not 3+.