What is a cursor short answer?

What is a cursor short answer?

1) A cursor is the position indicator on a computer display screen where a user can enter text. Typically, the pointing cursor is an arrow and the text entry position cursor is a blinking underscore or vertical bar.

What cursor means?

noun. Digital Technology. a movable, sometimes blinking, marker that indicates the position on a display screen where the next character entered from the keyboard will appear, or where user action is possible.

What does the cursor look like?

Example of a mouse pointer By default, it looks like a pointed arrow. When positioned over selectable text, it appears as an I-beam cursor. When hovering over a link, it appears as a pointing hand.

What is the difference between cursor and mouse?

The “Pointer” or “Mouse Pointer”: It is the graphical object that moves on screen. It can be static or animated. The “Cursor”: It is the file or the memory block used to encode and save the animated (ANI) or static (CUR) graphical object.

What is cursor explain with example?

Cursor is a Temporary Memory or Temporary Work Station. It is Allocated by Database Server at the Time of Performing DML operations on Table by User. Cursors are used to store Database Tables. There are 2 types of Cursors: Implicit Cursors, and Explicit Cursors. These are explained as following below.

What is the cursor and ref cursor?

A cursor is really any SQL statement that runs DML (select, insert, update, delete) on your database. A ref cursor is a pointer to a result set. This is normally used to open a query on the database server, then leave it up to the client to fetch the result it needs.

What is blinking cursor?

In Microsoft Windows, the cursor blinks whenever you click editable text. It blinks to stay visible, helping you notice its position in long documents. In shorter stretches of text, such as your browser’s address bar, the blinking does little to guide you and might even be distracting.

Can we declare cursor inside begin?

You can declare multiple cursors in the same pl/sql block. There is no need to declare the second cursor after you’ve opened the first cursor! Any time you see a nested cursor loop, you should IMMEDIATELY stop and look to see if you can combine the queries into a single select statement.

What is the use of cursor explain with example in Android?

A Cursor represents the result of a query and basically points to one row of the query result. This way Android can buffer the query results efficiently; as it does not have to load all data into memory. To get the number of elements of the resulting query use the getCount() method.

What is ref cursor example?

A ref cursor is a variable, defined as a cursor type, which will point to, or reference a cursor result. The advantage that a ref cursor has over a plain cursor is that is can be passed as a variable to a procedure or a function. The REF CURSOR can be assigned to other REF CURSOR variables.

What is a cursor and what is its use?

A cursor is a movable indicator that is used to indicate the current position for any input on a computer interface. The cursor can be moved along the interface or application with the help of various keys on the keyboard or with the help of input or pointing devices such as a mouse.

What is the main use of cursor?

Use of Cursor The major function of a cursor is to retrieve data , one row at a time, from a result set, unlike the SQL commands which operate on all the rows in the result set at one time. Cursors are used when the user needs to update records in a singleton fashion or in a row by row manner, in a database table.

How do I show my cursor?

Go to “Control Panel”. Find “Mouse” and click on it. “Mouse Properties” should open. Go to “Pointer Options” and check “Show location of pointer when I press the CTRL key”: Click “Apply” and “OK”. Now whenever you press the Ctrl key (left or right) the round circles should surround your mouse pointer indicating where it is located.

What does cursor stand for?

2) In some database programs, the term cursor is an acronym that stands for current set of records. When a group of records is selected, that group is called the current set.