What is SQL 911?

What is SQL 911?

-911 THE CURRENT UNIT OF WORK HAS BEEN ROLLED BACK DUE TO DEADLOCK OR TIMEOUT. REASON reason-code , TYPE OF RESOURCE resource-type , AND RESOURCE NAME resource-name.

What does DB2 SQL code?

SQLCODE is an element of the SQLCA that stores a warning or return code from an SQL process. If you are running in DB2 mode, the value in SQLCODE is a DB2 warning or return code. To determine the appropriate error code, you must translate it into an XDB error message ID using the formula listed in the table below.

What will you face Sqlcode 911?

At the time of deadlock or timeout you will face SQLCODE -911. 32. When you will try to insert or update a record with duplicate key then you will face SQLCODE = -803.

Which key allows null row?

unique key
A unique key is the same as a primary key, but it can accept one null value for a table column. It also cannot contain identical values. Unique constraints are referenced by the foreign key of other tables.

What does a positive Sqlcode indicates?

Positive value mean a successful execution with a warning. An example is +100, which means that no matching rows were found or that the cursor has reached the end of the table.

How do I fix a DB2 error?

Fix: Qualify the ambiguous column name with a correct table name. If the SQL statement try to use INSERT , UPDATE or SELECT a column name which is not part of the table, then this DB2 SQL Error code is generated. ORDER BY clause in wrong because the column name is not a part of the result table .

What does a positive SQL code indicate?

Can keys be null?

Short answer: Yes, it can be NULL or duplicate. I want to explain why a foreign key might need to be null or might need to be unique or not unique. First remember a Foreign key simply requires that the value in that field must exist first in a different table (the parent table).