CREATE TABLE customer (cid BIGINT NOT NULL PRIMARY KEY, info XML) How many names will be returned for this XQuery?()https://assets.asklib.com/images/image2/2018080214495585870.jpg
相似题目
-
Which statement adds a constraint that ensures the CUSTOMER_NAME column of the CUSTOMERS table holds a value?()
-
For an HttpServlet Response response, which two create a custom header()
-
Which of the following WebSphere Commerce user roles can create new customer care queues?()
-
默认约束是在CREATE TABLE或ALTER TABLE语句中定义的,删除表的时候默认约束也随之删除了。
-
Examine the command that is used to create a table: SQL> CREATE TABLE orders(oid NUMBER(6) PRIMARY KEY, odate DATE, ccode NUMBER(6), oamt NUMBER(10,2)) TABLESPACE users; Which two statements are true about the effect of the above command) ()
-
由以下语句创建的表有种子字段,请正确组合插入语句,可不分先后。CREATE TABLE Customer(id int IDENTITY PRIMARY KEY,Customer varchar(40))()
-
ForPro命令CREATE TABLE客户(客户号C(8),净水器编号C(18),类型C(8))的作用是()。
-
The CUSTOMERS table has these columns: https://assets.asklib.com/images/image2/2018080116294948484.jpg The CUSTOMER_ID column is the primary key for the table.Which two statements find the number of customers? ()
-
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?()
-
假设在数据库中创建了用户test,需要为其授予CREATE ANY TABLE系统权限,可以使用如下()语句。
-
Examine the command that is used to create a table: SQL> CREATE TABLE orders(oid NUMBER(6) PRIMARY KEY, odate DATE, ccode NUMBER (6), oamtNUMBER(10,2)) TABLESPACE users; Which two statements are true about the effect of the above command()
-
管理员在执行create database benet usebenet create table benet01(column1int,column2int)语句时,发生了错误,如何修改()
-
Evaluate the CREATE TABLE statement: CREATE TABLE products (product_id NUMBER (6) CONSTRAINT prod_id_pk PRIMARY KEY, product_name VARCHAR2 (15)); Which statement is true regarding the PROD_ID_PK constraint?()
-
Which is a valid CREATE TABLE statement? ()
-
The CUSTOMERS table has these columns: https://assets.asklib.com/images/image2/2018080116181325145.jpg Which statement finds the rows in the CUSTOMERS table that do not have a postal code?()
-
更改“成绩表”以添加新列“column_a” CREATE TABLE 成绩表 ADD column_a VARCHAR(20) NULL
-
CREATE TABLE是______功能的SQL语句。CREATE TABLE是______功能的SQL语句
-
使用SQL的CREATE TABLE语句建立数据库表时,为了说明主关键字应该使用关键词 KEY。使用SQL的CREATE TABLE语句建立数据库表时,为了说明主关键字应该使用关键词 KEY。
-
The following statements:CREATE TABLE t1 (col1 INT NOT NULL, PRIMARY KEY(col1)); CREATE TA
-
在Visual FoxPro中,下列关于SQL表定义语句(CREATE TABLE)的说法错误的是()。A.可以定义一个新的
-
考虑如下数据表和查询,如何添加索引功能提高查询速度?()Create table mytable(Id int,Name
-
公司有一个客户的数据表,此表的建立语句如下:CREATE TABLE Customers(CustomerID int NOT NULL, CustomerName varchar(50) NOT NULL, ContactName varchar(30) NULL, Phone varchar(20) NULL, Country varchar(30) NOT NULL, CONSTRAINT
-
对于下面一段程序,当语句4执行出错后,应该执行哪条语句______。 exec sql whenever sqlerror continue; //语句1 exec sql whenever sqlerror goto s2; //语句2 exec sql whenever sqlerror goto handle_error; //语句3 … … Exec sql create table custs //语句4 (cids char(4) not null, cname varchar(13), … …); if (strcmp(SQLSTATE, “82100”) == 0) //语句5 <处理82100错误的程序> … s2:… … //语句6 … handle_error:… … //语句7 …
-
Values of attribute Customer_ID in table BORROW(Customer_ID, Loan_no) must be the values o
推荐题目
- 仓储活动和其他物质生产活动一样,具有生产力三要素,即()。
- 文员制作日程安排计划表时,以下哪一种情况应避免?()。
- 什么是机械加工工艺规程?
- 最普遍、最常见和容易被对方接受的担保是()。
- 下列关于旋翼直径过大可能带来的坏处的说法,错误的是()
- 男性,32岁。尿频、尿急、尿痛1年半。症状反复发作,并逐渐加重,常规抗感染治疗不奏效。近2个月反复出现尿液混浊及终末肉眼血尿,膀胱刺激症状加重,伴有恶心、低热,左侧腰部胀痛。下一步的治疗方案应采取(提示:经治疗2周后,患者全身情况好转,临床症状明显减轻。)()。
- 电力系统是动力系统的一部分,它由发电厂的发电机及配电装置,升压及降压变电所、输配电线路及用户的用电设备所组成。
- 根据我国《保险法》规定,投保人、被保险人或者受益人故意制造保险事故的,保险人有权解除保险合同,不承担赔偿或者给付保险金的责任,除《保险法》另有规定外,也不退还保险费()
- 给人严肃、成熟感,但面部不够活泼,缺乏柔和感的脸型是哪种脸型:
- 北京一年中雨量最多的季节,X地()