What does Sqlcode 811 mean?
SQLCODE = -811, ERROR: THE RESULT OF AN EMBEDDED SELECT STATEMENT OR A SUBSELECT IN THE SET CLAUSE OF AN UPDATE STATEMENT IS A TABLE OF MORE THAN ONE ROW, OR THE RESULT OF A SUBQUERY OF A BASIC PREDICATE IS MORE THAN VALUE.
What type is Sqlcode?
SQLCODE is a database state function that returns an INTEGER data type with a default value of 0 (zero).
What is cursor in DB2?
Db2 has a mechanism called a cursor . Using a cursor is like keeping your finger on a particular line of text on a printed page. In Db2, an application program uses a cursor to point to one or more rows in a set of rows that are retrieved from a table.
How is isolation level defined in DB2?
In Db2 you can specify the following four isolation levels: cursor stability (CS), repeatable read (RR), read stability (RS), and….Standard SQL defines four isolation levels that can be set using the SET TRANSACTION ISOLATION LEVEL statement:
- Serializable.
- Repeatable read.
- Read committed.
- Read uncommitted.
What is bind in COBOL DB2?
STEP 4 – DB2 BIND The bind process reads the DBRM that was created in the precompile and prepares an access path to the data. This access path, along with the consistency token, is stored in the DB2 catalog as a Package. Every Package is bound into a Package List, or Collection.
What is null indicator in COBOL DB2?
The null indicator is used by DB2 to track whether its associated column is null or not. A positive value or a value of 0 means the column is not null and any actual value stored in the column is valid.
What is deadlock in Db2?
A deadlock occurs when two or more application processes each hold locks on resources that the others need and without which they cannot proceed. After a preset time interval, Db2 can roll back the current unit of work for one of the processes or request a process to terminate.