The following are specific procedures that are conserved and are used to implement automatically in place or else implement the following after the improvement and upgrading of data. The following also allows the user to deploy a batch containing code when any kind of issue, like an insert or u...
CREATETABLEcakes(cake_idINTNOTNULLAUTO_INCREMENTPRIMARYKEY,flavorVARCHAR(100)NOTNULL);CREATETABLEcustomers(customer_idINTNOTNULLAUTO_INCREMENTPRIMARYKEY,first_nameVARCHAR(100)NOTNULL,last_nameVARCHAR(100)NOTNULL,phoneVARCHAR(15),street_addressVARCHAR(255),cityVARCHAR(255),zip_codeVARCHAR(5),referrer_id...
Conditional Statements:These includeIFandCASEstatements, which execute different blocks of code based on conditions.TheDECODE() functionis another good example of a conditional that is worth studying. Intermediate PL/SQL Interview Questions Having covered the basic questions, now let's move on to some...
An ORM library is written in our language of choice and encapsulates the code needed to manipulate the data. Therefore we don’t need to directly use the SQL; we can interact instantly with an object from our code, instead of a database table. The ORM tool translates the interaction into ...
15+ interview SQL questions, including both technical and non-technical questions, along with their answers.
`zip_code` varchar(5) DEFAULT NULL, PRIMARY KEY (`customer_id`) ); CREATE TABLE `orders` ( `order_id` int(11) NOT NULL AUTO_INCREMENT, `customer_id` int(11) NOT NULL, `order_placed_date` date NOT NULL, PRIMARY KEY (`order_id`), ...
Solution of SQL Interview Question #1 The solution code is: SELECT authors.author_name, SUM(books.sold_copies) AS sold_sumFROM authorsJOIN booksON books.book_name = authors.book_nameGROUP BY authors.author_nameORDER BY sold_sum DESCLIMIT 3; ...
Raise_Application_Error(Error_Code,Error_Message); Example : Raise_Application_Error(-20343, ‘The balance is too low.’); 8.What is commit?RollBack?Savepoint? Answer : Commit : When user commits the data after transaction that changes are permanent changes. ...
Functions and stored procedures are both reusable code objects in SQL Server. Functions are designed to return a single value or a table and can be used in SQL statements likeSELECTorJOIN. Stored procedures can perform a wider range of operations, including modifying database objects, executing ...
Below is the T-SQL code to use Tracer tokens to troubleshoot the latency issues. –A SQL Agent JOB to insert a new Tracer Token in the publication database. USE [AdventureWorks] Go EXEC sys.sp_posttracertoken @publication = <PublicationName> ...