What does ASC mean in healthcare?
Ambulatory surgery centers
What is the meaning of ASC in a MySQL query?
MySQL ORDER BY clause
How do I sort a MySQL query?
When sorting your result set in descending order, you use the DESC attribute in your ORDER BY clause as follows: SELECT last_name, first_name, city FROM contacts WHERE last_name = ‘Johnson’ ORDER BY city DESC; This MySQL ORDER BY example would return all records sorted by the city field in descending order.
How do you order descending in SQL?
The SQL ORDER BY Keyword The ORDER BY keyword is used to sort the result-set in ascending or descending order. The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, use the DESC keyword.
How do I change the order of rows in MySQL?
An “ALTER TABLE ORDER BY” statement exist in the syntaxes accepted by MySQL. According to the documentation, this syntax: – only accept *onecolumn, as in “ALTER TABLE t ORDER BY col;” – is used to reorder physically the rows in a table, for optimizations.
Can we use order by without where clause?
You can use the WHERE clause with or without the ORDER BY statement. You can filter records by finite values, comparison values or with sub-SELECT statements. The WHERE clause gives you several options when filtering data.
What is DDL and DML command?
DDL statements are used to create database, schema, constraints, users, tables etc. DML statement is used to insert, update or delete the records.
Why bulk collect is faster in Oracle?
Since the BULK COLLECT fetches the record in BULK, the INTO clause should always contain a collection type variable. The main advantage of using BULK COLLECT is it increases the performance by reducing the interaction between database and PL/SQL engine.
Which of the following is the example of named Block?
Named blocks: That’s PL/SQL blocks which having header or labels are known as Named blocks. These blocks can either be subprograms like functions, procedures, packages or Triggers. Example: Here a code example of find greatest number with Named blocks means using function.
Is package anonymous in SQL?
Anonymous blocks are usually used interactively from a tool, such as SQL*Plus, or in a precompiler, OCI, or SQL*Module application. They are usually used to call stored procedures or to open cursor variables. Oracle Database PL/SQL Packages and Types Reference for complete information about the DBMS_OUTPUT package.
What are the three PL SQL block types?
A PL/SQL block consists of three sections: declaration, executable, and exception-handling sections.
What is the difference between anonymous PL SQL block and stored procedure?
What is the difference between anonymous blocks and stored procedures? Anonymous block is PL/SQL code and compiled only when called. Stored procedure is compiled and stored in database with the dependency information as well.
What are the components of a PL SQL block?
A PL/SQL block consists of up to three sections: declarative (optional), executable (required), and exception handling (optional).
- Arvind209. Answered On : Jun 29th, 2008.
- Component of PL/SQL Block are Begin(Optional), Declare(Mandatory), Exception(Optional), END(Mandatory).
What is an anonymous block in PL SQL?
Introduction to Anonymous Blocks A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. Only the executable part is required. begin dbms_output.put_line(‘hello world’); end; /
How does PL SQL work?
PL/SQL stands for “Procedural Language extensions to the Structured Query Language”. SQL is a popular language for both querying and updating data in the relational database management systems (RDBMS). PL/SQL adds many procedural constructs to SQL language to overcome some limitations of SQL.