Database Programming

Memo fields can store up to 1 gigabyte of characters or 2 gigabytes of storage (2 bytes per character), of which you can display 65,535 characters in a control on a form or report. In addition, you can now apply rich-text formatting to the data in a Memo field. For example, you can set colours, change fonts, and make data bold or italic. Fields of memo data type cannot be grouped while filtering and it is not possible to sort them however, they are searchable. It is not possible to add a look up property to a memo field. It is also not possible to set an input mask to a memo field meaning that the user can input data however they want without an input mask to guide them as to what format to input the data in.

Text field are for plain text or combinations of text and numbers, such as addresses. Also numbers that do not require calculations, such as phone numbers, part numbers, or postal codes. Text fields may store up to a maximum of 255 characters. Microsoft Access only stores the characters entered in a field; it does not store space characters for unused positions in a Text field. To control the maximum number of characters that can be entered, set the Field Size property. You can and should define a width, but Access doesn't use fixed width storage so is not as wasteful of disk space. Text fields may have look up properties to link them to other fields if necessary.

a mandatory field in a database is one created in a table as "Not null". This means, there is a "rule" on the field that when data is inserted into the table, this field cannot be empty. If it is, then the insert errors. Here's part of a table definition in my database. These field are are required to be populated when inserting into this table. ATTR_DESC_01 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_02 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_03 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_04 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_05 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_06 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_07 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_08 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_09 CHAR(2) DEFAULT SYSTEM NOT NULL
, ATTR_DESC_10 CHAR(2) DEFAULT SYSTEM NOT NULL
, PARTITION_NBR SMALLINT NO DEFAULT NOT NULL
)

You can add a table, rows, columns, or cells

A sub program is a set of easily reusable code that makes a program easier to read and understand, and it also makes the file size smaller.

• Oracle
• SQL Server
• Sybase
• MS Access
• Db2
• etc

A cell attribute is the way in which the data inside the cell is displayed e.g. currency or percentage.

fastest--->leopard slowest--->tortoise

A boolean operator is a simple word such as and, or, or not which are used to narrow or expand searches. Boolean operators are also used in programming to determine a path of action often depending on the status of a variable.

Internet capable.

segments that are notcoplanar. (not in the same plane)

Incomplete Binary Tree is a type of binary tree where we do not apply the following formula:

1. The Maximum number of nodes in a level is 2

Because i dont know

Depersonalization can be triggered by feelings of anxiety, stress, or overwhelming emotions, leading individuals to feel detached from themselves or their surroundings. Thoughts of inadequacy, fear of losing control, or an intense focus on self-awareness can also contribute to this sensation. Additionally, traumatic experiences or significant life changes may provoke feelings of unreality, causing a disconnect from one’s identity or environment.

To remove computer viruses without using antivirus software, first disconnect from the internet to prevent further infection. Restart your system in safe mode and delete any unfamiliar programs or files. Use built-in tools like Windows Defender Offline Scan or Task Manager to stop suspicious processes. Clear temporary files, reset your browser, and update your system to close security gaps. Always back up important data before cleaning.

draw a typical storage hierarchy pyramind.

Numeric means a number is used. For a key, that would usually be an integer. Non-numeric keys can include any symbols (i.e., text). In theory, you could also use other specialized data types, for example, dates. Check the data types available by a specific RDBMS; details may vary. Almost any data type can be used for a key; although variable-length data types such as BLOB are either not supported or not practical to use.

Because you want the field to be large enough to store the data. Also, you may not want to have it too large if you know values are going to be in a small range. If you allocate a large amount of space, that will be used by each record, even when actual values are small, so it is more efficient to use the right sizes. So, in short, you choose the appropriate size to ensure you don't have too little or too much size allocated for your intended data.

Implicit FTPS runs on port 990 by default.

Re-run MS Office setup from CD choose to modify setup. Check "options" checkbox to explore components and in MS Office Tools, I believe, sellect MS Query to be installed. Make sure not to uncheck existing components

And.. Or

A Byte is an arrangement of eight Bits (Binary digITs)

Access

A horizontal series of cells in a table is usually called a "row". A vertical series of cells in a table is usually called a "column".

5 GB to is 5120 MB, since 1 GB = 1024 MB. For the purpose of easy calculations, however, it is taken that 5 GB = 5000 MB.