Description. Within SQL certain words are reserved. … The word is delimited with double quotes (“word”), and. Delimited identifiers are supported.
Is description a reserved word in mysql?
There are reserved words in MySQL which cannot be used as identifiers (table or column names etc.)
MySQL Reserved Words.
Is description a keyword in SQL?
Thus EXIT is a reserved keyword (but I don’t know where it is used) and DESCRIPTION is not. However, T-SQL uses a lot of unreserved keywords. That is, words that are used as keywords in special contexts but still can be used as identifiers.
What are reserved words in SQL?
Reserved words are SQL keywords and other symbols that have special meanings when they are processed by the Relational Engine. Reserved words are not recommended for use as database, table, column, variable or other object names.
How do you write a description in SQL?
Since in database we have tables, that’s why we use DESCRIBE or DESC(both are same) command to describe the structure of a table. Syntax: DESCRIBE one; OR DESC one; Note : We can use either DESCRIBE or DESC(both are Case Insensitive).
How do you use reserved words in SQL?
Reserved words are not recommended for use as database, table, column, variable or other object names. If a reserved word is used as an object name, it must be enclosed in double-quotes to notify the Relational Engine that the word is not being used as a keyword in the given context.
What are the reserved words in C?
C reserved keywords
Is ODBC an API?
Open Database Connectivity (ODBC) is an open standard Application Programming Interface (API) for accessing a database.
What are the SQL keywords?
List of SQL Keywords
- CREATE. The CREATE Keyword is used to create a database, table, views, and index. …
- PRIMARY KEY. This keyword uniquely identifies each of the records. …
- INSERT. The INSERT Keyword is used to insert the rows of data to a table. …
- SELECT. …
- FROM. …
- ALTER. …
- ADD. …
What is all keyword in SQL?
ALL operator is used to select all tuples of SELECT STATEMENT. It is also used to compare a value to every value in another value set or result from a subquery. … The ALL must be preceded by comparison operators and evaluates true if all of the subqueries values meet the condition.
Why do we use DDL?
Data definition language. DDL statements are used to build and modify the structure of your tables and other objects in the database. When you execute a DDL statement, it takes effect immediately.
How do you escape keywords in SQL?
To escape reserved keywords in SQL SELECT statements and in queries on views, enclose them in double quotes (”).
What is DDL command?
Data Definition Language (DDL) commands are used to create, manipulate, and modify objects in Snowflake, such as users, virtual warehouses, databases, schemas, tables, views, columns, functions, and stored procedures.
How do you write a database description?
Description of the Database:
Mention the most unique features, and try to be as clear and concise as possible. Include examples of types of searches, or information retrieval, that this database makes possible. Adding hard numbers may mean that the description will need frequent updates.
How do you describe a database?
A database is a collection of information that is organized so that it can be easily accessed, managed and updated. Computer databases typically contain aggregations of data records or files, containing information about sales transactions or interactions with specific customers.
What are the DML commands?
Some commands of DML are:
- SELECT – retrieve data from the a database.
- INSERT – insert data into a table.
- UPDATE – updates existing data within a table.
- DELETE – deletes all records from a table, the space for the records remain.
- MERGE – UPSERT operation (insert or update)
- CALL – call a PL/SQL or Java subprogram.