福师《数据库应用》在线作业二（国外英文资料）.docVIP

福师《数据库应用》在线作业二（国外英文资料） Fushi database application online assignment 2 Test paper 13 spring total score: 100 test time: - Single topic selection (50 tests, 100 points.) In Visual FoxPro, the following error in the view description is () A: you can query the table by view The table is updated by the view The view is a virtual table A view is a query Full marks: 2 There is a character field book number in the book table. Ask for an SQL DELETE command to DELETE the book number with the letter A in the beginning of the book. The correct order is () A. DELETE FROM book FOR book number LIKE A % B. DELETEFROM books WHILE books, LIKE A % A. DELETE FROM book WHERE book number = A * D. DELETE FROM the book WHERE book number LIKE A % Full marks: 2 If you have a LOCAL data, the initial value of data is () A. the integer 0 B. unvalued C. logic really D. the logical false Full marks: 2 In SQL, the command to index is () A. CREATE TABLE B. the CREATE INDEX C. CREATE a VIEW D. the INDEX ON Full marks: 2 The program code for closing the form is thisform.release. Release is () The title of the form object The properties of the form object The event of the form object The method of the form object Full marks: 2 If you want the user to enter the value of the age field, the value must be greater than 0, which of the following should be set () Field type B. information C. rules D. The default value Full marks: 2 The following list of events that belong to the command button are () A. the Parent B. This C. ThisForm D. Click Full marks: 2 The file named MNX is () Note file Project file Form file Menu file Full marks: 2 In the form control, you want to save multiple lines of text, creating () A. list box B. a text box C. the label D. edit box Full marks: 2 In Visual FoxPro, the following statement about the SELECT statement of SQL is wrong () The A. SELECT clause can contain columns and expressions in the table You can use an alias in the b. SELECT clause The C. SELECT clause specifies the c