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 ...
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问题：单选题Given the following two tables: TAB1 C1 C2 A 11 B 12 C 13 TAB2 CX CY A 21 C 22 D 23 The following results are desired: C1 C2 CX CY A 11 A 21 C 13 C 22 -- --D 23 Which of the following queries will yield the desired results?（）A SELECT * FROM tab1 INNER ...
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Given the following stored procedure:CREATE PROCEDURE increase_salary ( IN p_workdept CHAR(6), OUT p_sum DECIMAL(9,2) ) SET p_sum = (SELECT SUM(salary) FROM employee WHERE workdept=p_workdept);How can this stored procedure be called from the Command Li...
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 will begin a new unit of work?（）A The CONNECT statementB The first FETCH of a cursorC The BEGIN TRANSACTION statementD The first executable SQL statement...
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 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：单选题Which of the following resources can be referenced in the LOCK statement?（）A RowB TableC ColumnD Table space...
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 describes the objects of a DB2 database and their relationships?（）A InstanceB Table spaceC System catalogD Schema repository...
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Which of the following describes the model used by the Geodetic Extender?（）A Flat earthB 3-D SquareC TrapezoidalD Round earth...
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How should the following UDF be invoked in order to convert US currency values stored in the EXPENSES table into Canadian currency?CREATE FUNCTION getratews11 ( country1 VARCHAR(100), country2 VARCHAR(100) ) RETURNS DOUBLE LANGUAGE SQL CONTAINS SQL EXT...
