This is one of the most importantSQL interview questionsthat are likely to be asked during an interview. 2) How can Trigger in SQL be defined? The following are specific procedures that are conserved and are used to implement automatically in place or else implement the following after the imp...
The trigger can be activated when the commands like insert, update, and delete are fired. The syntax used to generate the trigger function is as follows: CREATE TRIGGER trigger_name 23. What is SQL JOIN? The SQL JOIN component joins rows from one or more tables in a relational database....
The trigger can be activated when the commands like insert, update, and delete are fired. The syntax used to generate the trigger function is as follows: CREATE TRIGGER trigger_name 23. What is SQL JOIN? The SQL JOIN component joins rows from one or more tables in a relational database....
Transactions, and Security. A particular attribute of DDL commands is statements that can manipulate indexes, objects, tables, views, triggers, etc. Three popular DDL keywords in SQL
This guide lists out a few of the most asked SQL interview questions and gives their answers such as JOINS, KEYWORDS, TRIGGERS and much more.
This is a summary of numerous important questions that have the potential to be asked in an SQL related job interview. We covered the SQL concepts and some of the advanced and complicated SQL queries. We also covered the advanced database concepts like triggers, functions, views and procedures...
Prepare with basic and advanced PL/SQL interview questions and answers, covering topics like functions, triggers, dynamic SQL, and error handling.
Any data written to the database must be valid according to all defined rules, including constraints, cascades, triggers, and any combination thereof. Isolation. The isolation property ensures that the concurrent execution of transactions results in a system state that would be obtained if ...
TRUNCATE purges a table of all rows. No triggers will be shot and the operation can indeed be undone. As a result, TRUNCATE is quicker and requires less undo space than DELETE. Rows can be deleted from a table using the DELETE command. Only some rows can be deleted using a WHERE claus...
database level. Stored procedures, however, are not event-drive and are not attached to a specific table as triggers are. Stored procedures are explicitly executed by invoking a CALL to the procedure while triggers are implicitly executed. In addition, triggers can also execute stored procedures...