问题：单选题The following statements: CREATE TABLE t1 (col1 INT NOT NULL, PRIMARY KEY(col1)); CREATE TABLE t2 (col1 INT NOT NULL, col2 CHAR(1) NOT NULL, PRIMARY KEY (col1, col2), FOREIGN KEY (col1) REFERENCES t1 (col1) ON DELETE CASCADE ON UPDATE RESTRICT); CREATE...
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问题：单选题Which of the following describes how DB2 9 stores an XML document if the XML Extender is not used?（）A CLOBB BLOBC HierarchicallyD Rows and columns...
问题：单选题Which of the following describes the objects of a DB2 database and their relationships?（）A InstanceB Table spaceC System catalogD Schema repository...
问题：单选题Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）A Define the column MAINID as NOT UPDATABLEB Define the column MAINID as a PRIMARY KEYC Define the column ...
问题：单选题Assuming PUBLIC has been granted all privileges on table T1, which of the following statements would continue to permit any user to add rows to table T1, but not remove them?（）A REVOKE DROP ON t1 FROM PUBLICB REVOKE UPDATE ON t1 FROM PUBLICC REVOKE DEL...
问题：单选题A UDT is a data type which:（）A must contain unique values.B cannot be CAST to other data types.C is created using the CREATE DISTINCT command.D contains a value that was automatically calculated from values in other columns....
问题：单选题Which of the following supports the XML data type?（）A A unique indexB A composite indexC A check constraintD A generated column...
问题：单选题Which of the following tools for DB2 V9 allows a user to create and debug a SQL stored procedure?（）A Control CenterB Development CenterC Developer WorkbenchD Stored Procedure Builder...
问题：单选题Given that tables T1 and T2 contain the following rows: Table T1: C1 C2 1 4 1 3 1 2 Table T2: C1 C2 1 1 1 2 1 3 Which of the following queries will return only those rows that exist in both T1 and T2?（）A SELECT * FROM t1 UNION SELECT * FROM t2B SELECT ...
问题：单选题To which of the following resources can a lock be applied?（）A RowB AliasC BitmapD Column...
问题：单选题Which of the following commands is used to retrieve database names from the local catalog for DRDA host databases on System i and System z?（）A LIST DB DIRECTORYB LIST DCS DIRECTORYC LIST NODE DIRECTORYD LIST ACTIVE DATABASES...
问题：单选题Given that tables T1 and T2 contain the following rows: Table T1: C1 C2 5 4 5 2 5 5 Table T2: C1 C2 5 1 5 2 5 3 Which of the following queries will return only those rows that exist in T1 and not in T2?（）A SELECT * FROM T1 MINUS SELECT * FROM T2B SELEC...
问题：单选题Which of the following is the lowest cost DB2 product that can be legally installed on an AIX server?（）A DB2 Express EditionB DB2 Personal EditionC DB2 Workgroup Server EditionD DB2 Enterprise Server Edition...
问题：单选题Given the following table definitions: EMPLOYEE ID NAME DEPTID 01Smith 10 02Bossy 20 03 20 Peterson 04Goss 30 05Pape 40 06Avery 50 07O'Neal 60 08Carter 50 DEPARTMENT ID DEPTNAME 05 Hardware 10 Kitchen 20 Shoes 30 Toys 40 Electronics 50 Automotive and t...
问题：In which of the following situations should correlation name...
问题：单选题Given the following function: CREATE FUNCTION emplist （ ） RETURNS TABLE ( id CHAR(6) , firstname VARCHAR(12) , lastname VARCHAR(15) ) LANGUAGE SQL BEGIN ATOMIC RETURN SELECT EMPNO, FIRSTNME, LASTNAME FROM EMPLOYEE WHERE WORKDEPT IN ('A00', 'B00'); END ...
问题：单选题The following triggers were defined for table TAB1 in the order shown:CREATE TRIGGER trig_a AFTER UPDATE ON tab1 FOR EACH ROW UPDATE sale_tab SET sale_date = CURRENT DATE; CREATE TRIGGER trig_b AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE invoice_tab...
问题：单选题Which of the following SQL statements will return the year and average salary for all employees hired within a given year that have a salary greater than $30,000?（）A SELECT * FROM t1 UNION SELECT * FROM t2B SELECT * FROM t1 UNION DISTINCT SELECT * FROM...
问题：单选题A stored procedure object is created into which DB2 object?（）A AliasB SchemaC PackageD Routine Space...
