How to fix ORA-01861: literal format string mismatch

ORA-01861 prints a matching list even if “the literal does not match the format string.” A literal in Oracle is a fixed, specific data point.

ORA-01861 databases occur when “literal does not match format string”. A real value in Oracle is a fixed, given data point. For example, in a given list of names, you might have literals like “BRAD” or “CHERIE”, known as character literals.

Find out the reason for and how to fix the ORA-01861 error message in Oracle.

Description

When users encounter the ORA-01861 error, they see the following specific Solution To Ora message:

ORA-01861: FakeThe numeric value does not match the format string

Reason

You tried to enter a literal with a different format string, but the length of the format string does not match the length of the literal.

Resolution

Option 1

Select Double;

to_date(‘20041308′,’yyyy/mm/dd’)
from

SELECT TO_DATE('2004/08/13','yyyy/mm/dd')
DE double;

In general, when using the TO_DATE quote, TO_TIMESTAMP function, TO_CHAR function, and similar functions, make sure that the actual string you supply matches the structure string you supply.

I’m here to insert data into a great spreadsheet, but I still get errors.

INSERT IN TO Patient
(
  Patient No,
  patient name,
 patient name,
   Patient's street address
  patient city,
  patient District,
  patient's zip code
  Date of Birth,
  Genre,
  patient's home phone
  Patient's mobile phone number
)
VALUES
(
  121
  'Miles',
  'Malone',
  '64 Zooweg',
  "Clapham"
  'UNITED KINGDOM',
  'SW4 9LP',
  '1989-12-09',
  'me',
  02086950291,
  07498635200
);

Error getting string: 1 sells for -
INSERT INTO Patient (PatientNo,PatientFirstName,PatientLastName,PatientStreetAddress,PatientTown,PatientCounty,PatientPostcode,DOB,Sex,PatientHomePhoneNumber,PatientMobilePhoneNumber)
VALUES (121, 'Miles', 'Malone', '64 Zooline', 'Clapham', 'UK', 'SW4 9LP', '1989-12-09', 'M', 02086950291, 07498635200)
Error message -
SQL Error: ORA-01861: format string does not actually match
01861. 00000 "literal does not match format string"
*Reason: literals in input must be the same length as literals in
           format group (except trusted spaces). If
           the "fx" modifier has been on for ages, the literal has to match almost exactly,
           with absolutely extra seats.
*Action: Correct this format string to match this literal.

I just don’t know why this is happening. I am currently learning SQL, any help is appreciated!

ORA-01861

ORA-01861 Since DATE and CHAR format strings cannot be compared between two date format operands, most of us should compare against the other two to avoid ORA-01861. In this article, you will see some ORA-01861 error patterns and related solutions.

SQL> conn hr/hr
Enabled.
SQL> Header disabled;
SQL> select count(*) || "People" of employees whose hire date > "2008-03-01";
specific number (*) || "People" employees where hire date > "2008-03-01"
  *
ERROR on line 1:
ORA-01861: literal mismatch with line on disk< /p>

But it ended up causing ORA-01861. Let’s try adding a to_date function to convert a string to a DATE value.

SQL> select count(*) || 'People' employees, where > hire date to_date('2008-03-01');
select counts(*) || "People" from employees where > Hire_date to_date('2008-03-01')
*
ERROR on line 1:
ORA-01861: Literal execution does not match format string

While this company was supposed to be comparable, its other formats failed. That is, the cause is also a configuration mismatch between date and time, not a data type mismatch.

Here we talked about two ORA-01861 model errors in this article:

1. Date data format mismatch issues.
2. JDBC driver issue specific to ORA-01861.

A.ORA-01861 Date Format Mismatch

Converting a date string to DATE will definitely not work Please. There are still computer hard drive incompatibility issues. Now let’s see what format the database accepts for the first date?

Select SQL>value v$nls_parameters where parameter='NLS_DATE_LANGUAGE';

=AMERICAN

Select SQL>value v$nls_parameters where parameter='NLS_DATE_FORMAT' ;

DD-MON-RR

There are five tips on how to solve the ORA-01861 problem, as well as how to match formats between date and company.

1. Match NLS_DATE_FORMAT
2. Use TO_DATE
3. Use TO_CHAR
4. Change NLS_DATE_FORMAT during session
5. Set NLS_LANG
6. Use NLS_LANG
7. Change NLS_DATE_FORMAT during li session

8. 1. Corresponds To NLS_DATE_FORMAT

   As we can see, the date string “2008-03-01” does not match the current date format “DD-MON-RR”. Let’s set up the current date frame by converting the date string from “2008-03-01” to “01-MAR-08”.

   SQL>count(*) select || Sales group "People" with hire date > "01-MAR-08";

   4-5 people

   Note that you don’t need to use the TO_DATE function to convert a string to a date, as the implicit conversion requires more processing.

   2.Use TO_DATE

   What is literal does not match format string?

   00000 – “literals cannot match the format string” *Cause: The literals in the input must be the same length as the literals in the new format string (excluding leading spaces). If the “FX” modifier is enabled, the actual value must match exactly, without special spaces.

   Explanation now It’s being worked on, but sometimes you can still use the original date. You can format a date string using the TO_DATE function.

   select sql> count(*) || "People" of employees whose hire date > to_date('2008-03-01', 'YYYY-MM-DD');

   Show people

   3. Use TO_CHAR

   Alternatively, you can also convert a DATE to a string using TO_CHAR to compare a date string.

   SQL> select count(*) || 'People' employees, where to_char(hire_date, 'YYYY-MM-DD') > '2008-03-01';

   4 people

   You may run into a performance issue with a workaround if the table is unexpectedly large. The calculated values ​​may require a functional index. In this case it is TO_CHAR(HIRE_DATE, ‘YYYY-MM-DD’).

   4. NLS_DATE_FORMAT Change Session Time

   If you don’t want to change your statement, not just a little, you can pre-define NLS_DATE_FORMAT at the session level to match the format of your date string.

   SQL> change established session nls_date_format means "YYYY-MM-DD";

   Modified session.

   SQL> count(*) select || "People" of people with hire date > "2008-03-01";

   nearly four people

   SQL>retired

   5. Set NLS_LANG

   Here is more information on the NLS_DATE_FORMAT topic. Sometimes you can’t change the application you use in your environment, even the SQL statements it contains. You may have noticed that many complain about the evening format. This is because the format of the date strings used during registration does not match your environment’s NLS settings.

   At this point, you can probably just set the NLS_LANG environment variable to get the date format of every session running on the platform to achieve full application compliance and prevent ORA-01861 .

   How do I fix my ORA-01861?

   Corresponds to NLS_DATE_FORMAT.
   Use TO_DATE.
   Use TO_CHAR.
   Change NLS_DATE_FORMAT to session time.
   Set NLS_LANG.

   In our case, the unique date string format is “2008-03-01” “YYYY-MM-DD”, what exactly should we set in nls_lang phonetics? There are several territories to the NLS_TERRITORY and NLS_DATE_FORMAT mapping table where the “YYYY-MM-DD” (or “RRRR-MM-DD”) format is fully used, one of them is SWEDEN.

   In the next parameter, we fix NLS_LANG to be SWEDEN, which then changes NLS_TERRITORY to SWEDEN.

   

   Note that nls_date_foramt literally comes from NLS_TERRITORY, not NLS_DATE_LANGUAGE.

   This is withoutORA-12705 connection, which means which Oracle database got the value due to NLS_LANG.

   What is the default date format in Oracle?

   Dates on Oracle websites in an internal numeric structure representing century, year, month, business day, hour, minute, second. The default night format is DD-MON-YY.

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