A.After a ROLLBACK is issued
B.After the sequence is altered
C.After the sequence is dropped
D.After the current session ends
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A.The next value will be 0 and the sequence will never use the values 101 to 105.
B.The next value will be 101 to ensure uniqueness between existing and newly generated sequence values.
C.Previously cached values are retained by DB2, and after the restart, will be used for values 101 to 105.
D.The next value will be 0 and DB2 will not ensure uniqueness between existing and newly generated values.
A.CATALOG TCPIP NODE myhost REMOTE db2srv SERVER 446
B.CATALOG TCPIP NODE mydb2srv REMOTE myhost SERVER 446
C.CATALOG TCPIP NODE myhost REMOTE db2srv SERVER 192.168.10.1
D.CATALOG TCPIP NODE mydb2srv REMOTE myhost SERVER 192.168.10.1
A.MQT
B.Trigger
C.Read Only Cursor
D.Stored Procedure
A.Row
B.Alias
C.Bitmap
D.Column
A.Application B will read the row.
B.Applications A and B will cause a deadlock situation.
C.Application B will wait until application A releases the Update lock.
D.Application A will be terminated so that application B can read the row.
Application A is designed to execute the following SQL statements within a single Unit of Work (UOW).
UPDATE employee SET salary = salary * 1.1 WHERE empno='000010' UPDATE department SET deptname = 'NEW dept' WHERE deptno='A00'Application B is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE department SET deptname = 'OLD DEPT' WHERE deptno='A00' UPDATE employee SET salary = salary * 0.5 WHERE empno='000010'
Application A and application B execute their first SQL statement at the same time. When application A and application B try to execute their second SQL statement, a deadlock occurs.
What will happen?（）
A.The database manager will rollback the transaction in both applications.
B.The database manager will rollback the transaction in one of the two applications.
C.Application B will successfully update the EMPLOYEE and DEPARTMENT tables; Application A will be placed in a lock wait state.
D.Application A will successfully update the EMPLOYEE and DEPARTMENT tables; Application B will terminate when the lock timeout value is reached.
A.An application process acquires at least a share lock on the current row of every cursor.
B.Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.
C.Any row changed by another application process can be read, even if the change has not been committed by that application process.
D.An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database.
A.The cursor is only protected from updates and deletes by concurrent applications.
B.The row is only protected from positioned updates and deletes that reference another cursor of the same application.
C.The cursor is protected from positioned updates and deletes that reference another cursor of a different application.
D.The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.
A.Row
B.Table
C.Column
D.Table space
A.Control Center
B.Development Center
C.Developer Workbench
D.Stored Procedure Builder
最新试题
A UDT is a data type which:（）
Given that tables T1 and T2 contain the following rows:Table T1: C1 C2 1 4 1 3 1 2Table T2: C1 C2 1 1 1 2 1 3Which of the following queries will return only those rows that exist in both T1 and T2?（）
Which of the following actions may cause a trigger to be fired?（）
A user needs to create a trigger that will update table T2 whenever a row is added to table T1. Assuming the user has all appropriate privileges for table T2, which privilege is required on table T1 to create the trigger?（）
A table was created using the following DDL:CREATE TABLE employee (id SMALLINT NOT NULL, name VARCHAR(9), dept SMALLINT CHECK (dept BETWEEN 10 AND 100),job CHAR(10) CHECK (job IN ('Sales','Mgr','Clerk')), hiredate DATE, salary DECIMAL(7,2), comm DECIMAL(7,2), PRIMARY KEY (id), CONSTRAINT yearsal CHECK (YEAR(hiredate) > 2004 OR salary > 80500) );Which of the following INSERT statements will fail?（）
Which of the following database objects is considered executable using SQL?（）
The EMPLOYEE table contains the following information: EMPNO NAME WORKDEPT101 SAM A11 102 JOHN C12 103 JANE -104 PAT Remote105 ANNE -106 BOB A11The MANAGER table contains the following information: MGRID NAME DEPTNO EMPCOUNT1 WU B01 - 2 JONES A11 - 3 CHEN - - 4 SMITH - -5 THOMAS C12 -After this statement is executed: UPDATE manager m SET empcount = (SELECT COUNT(workdept) FROM employee e WHERE workdept=m.deptno)What is the result of the following query?（）SELECT mgrid, empcount FROM MANAGER WHERE empcount IS NOT NULL ORDER BY mgrid
A view is created with the following statement:CREATE VIEW v1 AS SELECT col1, col2, col3 FROM t1 WHERE col4 > 1000 ; When will DB2 access the data from table T1 for view V1?（）
An application needs a table for each connection that tracks the ID and Name of all items previously ordered and committed within the connection. The table also needs to be cleaned up and automatically removed each time a connection is ended. Assuming the ITEMS table was created with the following SQL statement:CREATE TABLE items item_no INT, item_name CHAR(5), item_qty INT)Which of the following SQL statements will provide the table definition that meets the specified requirements?（）
Which kind of non-sourced UDF can be created so that it only returns a single value?（）