0
What else can I help you with?
What is the use of computer database in sales and marketing?
to easily find and alter information, to check stock etc. pickles
What is the difference between alter system and alter database?
Hi, According to Rauf Sarwar on http://comp.mailarchive.ca/databases.oracle.server/2003-06/1028.html ALTER DATABASE:Changes the operation of a database with respect to redo logs and data files. Backs up control files. Mounts, Dismounts, Opens, Closes a database. Performs media recovery. ALTER SYSTEM:Performs a specialized system function e.g. Kill session, Start/Stop archiving etc. Regards Mwamba Mutale
What is the difference between alter session and alter system?
Use the ALTER SESSION statement to specify or modify any of the conditions or parameters that affect your connection to the database. The statement stays in effect until you disconnect from the database. Use the ALTER SYSTEM statement to dynamically alter your Oracle instance. The settings stay in effect as long as the database is mounted. Ankit Kapse
What are the components of oracle database?
DDL - Data Definition Language Create,Alter,Drop and Truncate are the components of oracle database.
What are sql commands?
SQL commands are specific structured query language keywords that are used to create, alter, and view data held withing a database. (Ex. SELECT, CREATE, ALTER) For more information about SQL: http://en.wikipedia.org/wiki/SQL
Difference between alter and update commands in sql?
Update and Alter are two SQL (Structured Query Language) commands used for modifying databases. Update statement is used to update existing records in a database. Update is a Data Manipulation Language (DML) statement. Alter SQL command is used to modify, delete or add a column to an existing table in a database. Alter is a Data Definition Language (DDL) statement.Commands that are used to define the structure of a database (database schema) are called DDL statements.
What is Database state?
The database state refers to the collection of data stored in the database at a specific point in time. It represents the current values of all data elements, tables, and relationships within the database. Changes to the database, such as insertions, updates, or deletions, can alter its state.
You are updating a field in sql and alter the row also.after giving the commit command the system is crashed.what will happen to the commands givenwhether it will update and alter the table or not?
Your update should be recorded in the database. It depends on what type of crash. You should have hardware redundency, which if one component fails, a backup will ensure your update. All you can really do, is once the system is back up, check the table to see if the update is there.
Can you add new columns to a database after creating the structure?
Columns are added to a table, not a database (which is a collection of tables). Adding a column to a table is achieved by using the Alter Table SQL command.
What is William Control?
William Control is the deviant alter-ego of William Roy Francis.
What are the importance of querying a database?
Using a query in your Access database makes it easy to see, add, delete, or alter data. Other reasons to use inquiries include: By filtering on particular parameters, you can easily find specific data (conditions) Make a calculation or a summary of facts. To learn more about data science please visit- Learnbay.co
What is ddl dml tcl dql dcl?
DDL statements -Data Definition Language It is used to Retrive,Store,Modify,Delete,Insert,update data in database. 1) Create 2) Alter 3) Drop DML Statements.-Data Manipulation Languag It is used to create and modify the structure of database objects in database. 1) Insert 2) Update 3) Delete 4) select DCL statements-Data Control Language It is used to create roles, permissions, and referential integrity as well it is used to control access to database by securing it. 1) GRANT 2) REVOKE TCL-Transactional Control Language It is used to manage different transactions occurring within a database. 1) COMMIT 2) ROLLBACK 3) Save point DQL-Data Query Language basicallu used for select data from table... 1) SELECT
