As discussed above, the INSERT INTO statement will require the target table to be present; first, we must create the database’s target table structure. After creating the structure of table STUDENT_DETAILS, we shall go for the below query. INSERT INTO STUDENT_DETAILS (ROLL, NAME, AGE) SEL...
SqlCommand features the following methods for executing commands at a SQL Server database: Expand table ItemDescription BeginExecuteNonQuery Initiates the asynchronous execution of the Transact-SQL statement or stored procedure that is described by this SqlCommand, generally executing commands such as INSER...
The example below shows three columnsSELECTedFROMthe “student” table and one calculated column. The database stores the studentID, FirstName, and LastName of the student. We can combine the First and the Last name columns to create the FullName calculated column. 下例显示了FROM“学生”表中...
Chapter 13, "SQL*Plus Command Reference" Provides a summary of SQL*Plus commands and detailed descriptions of each SQL*Plus command in alphabetical order. Chapter 14, "SQL*Plus Error Messages" Lists error messages generated by SQL*Plus. It provides likely causes and appropriate actions for ...
WHERE Student_Id ='3' c. DELETE:It is used to remove one or more row from a table. Syntax: DELETE FROM table_name [WHERE condition]; For example: DELETE FROM javatpoint WHERE Author="Sonoo"; 3. Data Control Language DCL commands are used to grant and take back authority from any ...
For comparison, the equivalent SQL query to return all of the students in CS 101 would be something like 代码语言:javascript 复制 SELECTstudent.nameFROMcourses,enrollees,studentsWHEREcourse.name="CS 101" That syntax implies a relational inner join (actually two of them), as I’ll explain below...
A primary key is a unique identifier for a record in a database table. Syntax for creating a primary key: Create table student ( student_id int primary key student_name varchar(30), student_age int ) Adding primary key constraints using Alter Alter table student1 Add constraint pk_student...
CREATE TABLE `student` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `stuno` INT NOT NULL , `name` VARCHAR(20) DEFAULT NULL, `age` INT(3) DEFAULT NULL, `classId` INT(11) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8; ...
It enables you to enter and execute SQL, PL/SQL, SQL*Plus and operating system commands to perform the following: • Format, perform calculations on, store, and print from query results • Examine table and object definitions • Develop and run batch scripts • Perform database ...
sql:ExecutionResult result = check dbClient->execute(`CREATE TABLE student ( id INT AUTO_INCREMENT, age INT, name VARCHAR(255), PRIMARY KEY (id) )`); // A value of the sql:ExecutionResult type is returned for 'result'. Insert dataThese...