sql - Inserting into too many columns via SELECT query -


While it works as expected: 

 SQL & gt; Drop Table Test 1; Table Dropped SQL & gt; Create table test (COL1 INTEGER, COL2 INTEGER); The table was created in SQL & gt; INSERT when 1 = 1 2 then test 1 (COL1, COL2) with 3 SELECT 1, 0 dual; 1 row created sql & gt;  
 I get a strange "ORA-00918: Column fuzzy defined" error, which attempts to do it with more than two columns:  
 SQL & gt; ; Drop Table Test 1; Table Dropped SQL & gt; Create a Table Test (COL1 INTEGER, COL2 Intecher, COL3 Integer); The table was created in SQL & gt; INSERT when 1 = 1 2 again in test1 (COL1, COL2, COL3) 3 SELECT 1, 0, 0 by DUAL; Then in Test 1 (COL1, COL2, COL3) * Error 2 in line: ORA-00918: Columns ambiguously in SQL & gt;  
 Why am getting ORA-00918 error? Is there any limit on how many columns I can select in an insert ... then choose the pattern in ...?  
 Note: I am using Oracle 11.2.0.1.0, and the actual query I am trying to execute in production is more complex and reference is to use other tables (and "VALUES" Do not be enough) This is just a simplified case ...   
 
 
 Use aliases:  
 < Code> SQL & gt; Create a Table Test (COL1 INTEGER, COL2 Intecher, COL3 Integer); The table was created in SQL & gt; INSERT when 1 = 1 2 then select test 1 (COL1, COL2, COL3) 3, select 1 "1", 0 "2", 0 "3" with double; 1 line created   
 Due to this you get this obscure column error because when you do not provide a nickname, the oracle will use the rules of each column name in this case else The third column has the same name ( "0" ) and can thus be assigned from external query:  
  SQL & gt; Select Dual to 1, 0, 0; 1 0 ---------- ---------- ---------- 1 0   
 Oracle 'Semantic See the data value while doing the analysis.

Comments

Post a Comment

Popular posts from this blog

Python SQLAlchemy：AttributeError: Neither 'Column' object nor 'Comparator' object has an attribute 'schema' -

I tried to create a new database in my project, but when I run the script, I get this error, I have another project, this type of definition worked before, but now it gets a single error. I am using Python 2.7.8 and the version of SQLAlchemy module is 0.9.8. By the way, using a project flask- SQLAlchemy, it works well, I'm confused. Traceback information is as follows: Traceback (most recent call final): File "D: / Projects / IOM / db_create.py", line 4, & lt; Module & gt; From the models the base file "D: \ Projects \ OO-IM \ models.py", in line 15, in the & lt; Module & gt; Column ( 'followed_id', int (), ForeignKey ( 'user.id')) file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ schema.py", line 369, __new__ schema = metadata. Schema file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ elements.py", line 662, AttributeError in __getattr__ key): Neither 'column' object nor ...
Read more

java - How not to audit a join table and related entities using Hibernate Envers? -

I use Eners to be hibernate to audit my institutions. I have an audit entity, Foo , which includes a list & lt; Bars & gt; However, I do not want to audit the bar institutions, in the form of properties, I have written that: @inti @edicated public class Foo {@JoinTable (name = "T_FOO_BAR", joinColumns = @JoinColumn (name = "FOO_ID"), inverseJoinColumns = @JoinColumn (Name = "BAR_ID")) @ManyToMany (Cascade = Persist) @ Indited (targetAuditMode = RelationTargetAuditMode.NOT_AUDITED ) Public listing & lt; Bars & gt; GetBars () {Return bars; }} Now, I want to retrieve an amendment of foo : AuditReader reader = AuditReaderFactory.get (GetEntityManager ()); FU modification = (FU) reader.CreativeTeA () .entensEtrevision (Foo Class, 42) .getSingleResult (); Unfortunately, when I want to retrieve all the data (i.e. when it loads lazy times ), error me ORA-00942: table or view is not present , because Tried to query this: Sel...
Read more

mongodb - CakePHP paginator ignoring order, but only for certain values -

While pagging my user model in kppp, I can sort with some values, but not others. For example, I can order results from created or email , for example, but username or reputation seems to come back order by arbitrary command for example with a list of users: $ this-> paginate = array ('condition' => array ( 'User.is_active' = & gt; true), 'border' => 24, 'order' => array ('User.created' => DESC)); Works as expected, but $ this - & gt; Paged = array ('conditions' = & gt; array (' user.isIactive '= & gt; true),' border '= & gt; 24,' command '= & gt; array (' user repeats' = ' & Gt; DESC ')); No, no. I first thought that this could be a database issue, but when I search the database directly, sorted as expected. Note: I am using Mangodebi with the Mongo DB plugin of Ichikawa for the KPPHP; Pagnetizing users are used to work properl...
Read more