I believe it’s the ANSI standard. EDIT: Actually, I think it’s the SQL-92 standard. A later version of the standard appears to optionally allow for 128 character names, but Oracle doesn’t yet support this (or has partial support for it, insofar as it allows 30 characters. Hmmm.) Search for “F391, Long identifiers” on this page… … Read more
Many-to-many conditions should not be enforced using a trigger. Many-to-many conditions are enforced by creating a junction table containing the keys in question, which are then foreign-keyed back to the respective parent tables. If your intention is to allow many employees to be in a department, and to allow an employee to be a member … Read more
Class.forName(“oracle.jdbc.driver.OracleDriver”); This line causes ClassNotFoundException, because you haven’t placed ojdbc14.jar file in your lib folder of the project. or YOu haven’t set the classpath of the required jar java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver Just add the ojdbc14.jar to your classpath. The following are the steps that are given below to add ojdbc14.jar in eclipse: 1) Inside your project … Read more
Disable this warning by adding property below. For Spring application: spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false Normal JPA: hibernate.temp.use_jdbc_metadata_defaults=false
You can use an Oracle collection of numbers as a parameter (bind variable) when you use ODP.NET as dataprovider. This works with Oracle server 9, 10 or 11 and ODP.net release >= 11.1.0.6.20 . A similar solution is possible when you use Devart’s .NET dataprovider for Oracle. Let’s select the contracts with contractnum’s 3 and … Read more
Here you go: select length(‘123-345-566’) – length(replace(‘123-345-566′,’-‘,null)) from dual; Technically, if the string you want to check contains only the character you want to count, the above query will return NULL; the following query will give the correct answer in all cases: select coalesce(length(‘123-345-566’) – length(replace(‘123-345-566′,’-‘,null)), length(‘123-345-566’), 0) from dual; The final 0 in coalesce … Read more
This should give you all your parts : int partitionSize = 1000; List<List<Integer>> partitions = new LinkedList<List<Integer>>(); for (int i = 0; i < originalList.size(); i += partitionSize) { partitions.add(originalList.subList(i, Math.min(i + partitionSize, originalList.size()))); }
One additional idea, mentioned here is to use a regular expression to check: SELECT foo FROM bar WHERE REGEXP_LIKE (foo,’^[[:digit:]]+$’); The nice part is you do not need a separate PL/SQL function. The potentially problematic part is that a regular expression may not be the most efficient method for a large number of rows.
As you keep getting pages of results I’m assuming you started the session in SQL*Plus. If so, the easy thing to do is to bash ctrl + break many, many times until it stops. The more complicated and the more generic way(s) I detail below in order of increasing ferocity / evil. The first one … Read more
If GetQuestions is a function returning a refcursor, which seems to be what you have in the SQL Server version, then rather you may be able to do something like this: select * from table(MyPackage.GetQuestions(‘OMG Ponies’)); Or if you need it in a PL/SQL block then you can use the same select in a cursor. … Read more