一、原题 The PART_CODE column in the SPARES table contains the following list of values: PART_CODE A%_WQ123 A%BWQ123 AB_WQ123 Evaluate the following query: SQL> SELECT part_code FROM spares WHERE part_code LIKE %\%_WQ12% ESCAPE \…
1、string类型
用于表示0或多个16位Unicode字符组成的字符序列,即字符串
字符串可以由双引号(")或单引号()表示,
var firstName"Jack";
var lastNameAmy;上述代码的两种表现形式都是有效的…
一、原题 View the Exhibit and examine the structure of the PRODUCTS table. You need to generate a report in the following format:CATEGORIES5MP Digital Photo Cameras category is PhotoY Boxs category is ElectronicsEnvoy Ambassadors category is HardwareWhich…
一、原题 You need to extract details of those products in the SALES table where the PROD_ID column contains the string _D123.Which WHERE clause could be used in the SELECT statement to get the required output?A. WHERE prod_id LIKE %_D123% ESCAPE _B. WHER…