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Database ValuesYou can use the SELECT statement to have the Oracle assign values to a variable. ForEach and every item in the select list, there must be a matching, type-compatible variable in the INTO list. An illustration is as shown below:DECLAREmy_empno emp.empno%TYPE;my_ename emp.ename%TYPE;wages NUMBER(7,2);BEGIN...SELECT ename, sal + commINTO last_name, wages FROM empWHERE empno = emp_id;Though, you cannot select column values into the Boolean variable.
Using raise_application_error The Package DBMS_STANDARD that is supplied with Oracle gives language facilities that help your application to interact with Oracle. For illustra
Keyword and Parameter Description select_statement: This is a query which returns a result set of the rows. Its syntax is such that of select_ into_statement without the IN
Datatype Conversion At times it is necessary to convert a value from one datatype to another. For e.g. if you want to inspect a rowid, you should convert it to a character stri
#quesWrite a cursor to open an employee database and fetch the employee record whose age is greater than 45.tion..
Controlling Autonomous Transactions The first SQL statement in an autonomous routine starts a transaction. Whenever one transaction ends, the next SQL statement starts the oth
Consider the schema for FreeChecking Bank, that we designed given below. Translate the given ER schema into SQL CREATE TABLE statements (indicating primary key, unique and foreign
i have an assignment of DBMS subject, this assignment is based on SQL server and power BI
Cursors To execute the multi-row query, the Oracle opens an unnamed work region which stores the processing information. The cursor names the work region, access the informa
Biconditional - SQL The biconditional p ↔ q can be expressed in Tutorial D by p = q and the same is true of SQL. The question then arises as to whether, in SQL, p = q is equiv
LONG and LONG RAW You use the LONG datatype to store the variable-length character strings. The LONG datatype is such as the VARCHAR2 datatype, except that the maximum length o
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