ORA-00936
ORA-00936: недостаток выражения
Причина:
Требуемая часть предложения или выражения пропущена. Например, оператор SELECT был введен без списка колонок или выражений, или с незавершенным выражением типа (SAL+). Сообщение об ошибке следует также в тех случаях, где резервное слово пропущено, как в SELECT TABLE.
Действие:
Проверьте синтаксис оператора, и введите пропущенную компоненту.
Select /*+USE_HASH( a b ) */ to_char(date, 'MM/DD/YYYY HH24:MI:SS') as LABEL,
ltrim(rtrim(substr(oled, 9, 16))) as VALUE,
from rrfh a, rrf b,
where ltrim(rtrim(substr(oled, 1, 9))) = 'stata kish'
and a.xyz = b.xyz
The «from » (3rd line) part of the above query is giving me ORA-00936 Missing EXPRESSION error. Please Help me
NOTE :: rrfh table contains no data.
Aruna
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asked Aug 28, 2012 at 9:29
2
Remove the comma?
select /*+USE_HASH( a b ) */ to_char(date, 'MM/DD/YYYY HH24:MI:SS') as LABEL,
ltrim(rtrim(substr(oled, 9, 16))) as VALUE
from rrfh a, rrf b
where ltrim(rtrim(substr(oled, 1, 9))) = 'stata kish'
and a.xyz = b.xyz
Have a look at FROM
SELECTING from multiple tables You can include multiple tables in the
FROM clause by listing the tables with a comma in between each table
name
answered Aug 28, 2012 at 9:32
Adriaan StanderAdriaan Stander
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2
This answer is not the answer for the above mentioned question but it is related to same topic and might be useful for people searching for same error.
I faced the same error when I executed below mentioned query.
select OR.* from ORDER_REL_STAT OR
problem with above query was OR is keyword so it was expecting other values when I replaced with some other alias it worked fine.
answered Jul 3, 2018 at 7:35
Kishor m nKishor m n
451 silver badge7 bronze badges
update INC.PROV_CSP_DEMO_ADDR_TEMP pd
set pd.practice_name = (
select PRSQ_COMMENT FROM INC.CMC_PRSQ_SITE_QA PRSQ
WHERE PRSQ.PRSQ_MCTR_ITEM = 'PRNM'
AND PRSQ.PRAD_ID = pd.provider_id
AND PRSQ.PRAD_TYPE = pd.prov_addr_type
AND ROWNUM = 1
)
david
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answered Oct 10, 2013 at 7:44
user2412576user2412576
511 gold badge1 silver badge4 bronze badges
This happens every time you insert/ update and you don’t use single quotes. When the variable is empty it will result in that error. Fix it by using ''
Assuming the first parameter is an empty variable here is a simple example:
Wrong
nvl( ,0)
Fix
nvl('' ,0)
Put your query into your database software and check it for that error. Generally this is an easy fix
answered Feb 19, 2019 at 12:43
csandreas1csandreas1
2,0061 gold badge26 silver badges47 bronze badges
При выполнении ХП иногда появляется такая ошибка:
SQL> CALL MY_PROC();
CALL MY_PROC()
*
ERROR at line 1:
ORA-00936: отсутствует выражение ORA-06512: на
"MY_USER.MY_PROC", line 22
ORA-06512: на "MY_USER.MY_PROC", line 192
ORA-06512: на "MY_USER.MY_PROC", line 224
В коде ничего особенного:
...
192 update_val_proc(l_id, l_time, l_key, l_code, l_type, l_price, l_no);
...
193 loop_through_table_proc(327746);
224 write_log('done.');
...
Страно то, что на одних и тех же входных данных ХП иногда работает без ошибок, а иногда выдает эту ошибку. Как вывести дополнительную информацию об ошибке?
Did you get an ORA-00936: missing expression error? Learn what it means and how to resolve it in this article.
ORA-00936 Cause
The error you’ve gotten is this:
ORA-00936: missing expression
Oracle’s official “cause and action” that appears along with the error is:
Cause: A required part of a clause or expression has been omitted. For example, a SELECT statement may have been entered without a list of columns or expressions or with an incomplete expression. This message is also issued in cases where a reserved word is misused, as in SELECT TABLE. Action: Check the statement syntax and specify the missing component.
So, in summary, the query is missing some clause that it needs in order to run.
To resolve the ORA-00936 error:
- Check that your column names are all listed correctly in the SELECT clause
- Ensure you have a FROM clause in your SELECT statement. Even if you aren’t selecting from a table, you still need FROM in Oracle SQL, so you could use the DUAL table (LINK)
- Remove any commas that shouldn’t be in your query
Missing Columns
The ORA-00936 error often occurs when you leave out the columns in the SELECT clause.
For example:
SELECT
FROM students;ORA-00936: missing expression
This is because you need to list the column names after the word SELECT and before the word FROM.
This query should work:
SELECT student_id, first_name, last_name
FROM students;Missing FROM
This error can also occur if you don’t have a FROM keyword in your SELECT statement.
For example, this query will display an error:
SELECT first_name, last_name
WHERE student_id = 5;There is no FROM clause in this query, so you’ll get an error.
Correct the query to add the FROM clause, so it knows which table to query.
SELECT first_name, last_name
FROM students
WHERE student_id = 5;Remove Commas
Sometimes you have all of the right keywords, but you’re still getting the ORA-00936: missing expression error.
For example this query gives an error:
SELECT first_name, last_name,
FROM students
WHERE student_id = 5;The reason for this is because there is a comma after the final column “last_name”, and then there is the FROM keyword.
Commas should only be used when you want to specify another column or table, and not before a keyword like we have in this example.
To correct it, remove the comma.
SELECT first_name, last_name
FROM students
WHERE student_id = 5;ORA-00936 in UPDATE Statement
If you’re getting an ORA-00936: missing expression in an UPDATE statement, then the same steps can be taken:
- Check that you have all the keywords that are required (UPDATE, SET)
- Check there are no extra commas where there shouldn’t be.
- If you’re using a subquery inside the UPDATE statement, then ensure that subquery has all the right keywords and no extra commas as mentioned earlier
ORA-00936 in INSERT Statement
Just like the UPDATE statement, you can also get an ORA-00936: missing expression in an INSERT statement.
The same steps can be taken:
- Check that you have all of the required keywords.
- Check there are no extra commas
- Check that the number of values and the number of columns are the same
- If you’re using a subquery inside the INSERT statement, then ensure that subquery has all the right keywords and no extra commas as mentioned earlier
So, that’s how you resolve the ORA-00936 error in your SQL query. If you have any questions on this error, leave a comment below.
Lastly, if you enjoy the information and career advice I’ve been providing, sign up to my newsletter below to stay up-to-date on my articles. You’ll also receive a fantastic bonus. Thanks!
In my previous article, I have explained about the most common errors in Oracle. In This article, I will try to explain another most common error, which has been searched approximately 15000 times in a month by DBAs and developers. When you forget the actual syntax of the oracle select statement then the ORA-00936 missing expression error will come. While working with databases I have frequently faced ORA-00936: missing expression and struggled to solve and debug this issue. This kind of error will occur when user miss the syntax of SQL expression.
ORA-00936: missing expression is very common oracle error occurred due to the syntax of oracle statement.
Why ORA-00936 error will come?
Some Oracle mistakes are not nearly as intimidating to resolve, as the error message would seem to indicate. The ORA-00936 is the perfect example of such a case. This error provides an excellent case where thinking too hard about the answer will cost you far more time and effort than needed.
Reason for this error:
The ORA-00936 message is a missing expression error in Oracle. That entire ‘missing expression’ means is that when attempting to operate a query, a particular part of the clause necessary for it to function was omitted in the text. Stated simply, you left out an important chunk of what you were trying to run. This is most common error occurred during the syntax of SQL statement. If user failed to write or omit something in SQL query then ‘Missing Expression’ error will come.
Missing Information in Select Statement:
If user forgets to write the columns in the select statement then missing expression error will come.
Example:
Select * from Employee;
Select from Employee; —Error of missing expression will come.
From Clause is Omitted:
If user forgets to write the ‘from clause’ in select statement then missing expression error will come.
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Example:
Select * from Employee;
Select * Employee; —Missing Expression error will come
Resolution of the error:
As I have explained that missing expression error will come due to the bad syntax of ‘Select statement’ user needs to check the select statement is properly written or not. While working with huge queries then it is not easy for the user to find out where the actual error is. So finding out where the error is coming is important.
Resolution 1:
User needs to check the missing information from select statement. Most of the time the column names are missing in select statement.User needs to check that all columns are there in select statement.User needs to check the columns using desc command and make changes in the select statement.
Example :
Select from Employee;
It will fire that error so user needs to check the columns in Employee table using following statement:
Desc Employee;
Select Employee_Name,Employee_Number from Employee;
Resolution 2 :
Add from Clause in select statement
User needs to add ‘From’ clause at proper place in select statement.
Select * Employee;
Resolution Query :
Select * from Employee;
So these kind of errors are very easy to solve just user needs to concentrate on syntax of select statement.