Question

Which symbol used to perform addition of character and string data type? *​

Answer 1

Answer:

stores string of letters, number, and symbols.Data types character(CHAR) and character varying( VARCHAR) are collectively referred to character staying types, and the value of character strings. character data can be stored as fixed-length or variable-length strings.

Answer 2

Answer:

• A string records kind is traditionally a series of characters, both as a literal consistency or as a few types of variable. The latter can also additionally permit its factors to be mutated and the duration changed, or it can be fixed (after creation).
• A string is normally taken into consideration as the kind of a record and is frequently carried out as an array that records the shape of bytes (or words) that stores a sequence of factors, generally characters, the use of some character encoding.

• The character records kind represents individual or single characters. Characters include plenty of symbols which include the alphabet (each top and decrease case) the numeral digits (zero to 9), punctuation, etc. All computer systems save character records in a one-byte discipline as an integer value. Because a byte includes 8 bits, this one-byte discipline has 28 or 256 opportunities for the use of the fine values of zero to 255.

• C++, C#, and Java differentiate among single characters and strings the use of unmarried costs and double costs, respectively. JavaScript, Python, and Swift do now no longer differentiate among characters and strings and use both single costs or double costs to outline string literals.

• CHAR is conceptually a fixed-duration, blank-padded string. Trailing blanks (areas) are eliminated on input and are restored on output. The default duration is 1, and the most duration is 65000 octets (bytes).
• VARCHAR is a variable-duration individual records type. The default duration is 80, and the most duration is 65000 octets. For string values longer than 65000, use Long Data Types. Values can consist of trailing areas.

Normally, you operate VARCHAR for all the string records. Use CHAR while you want fixed-width string output. For example, you could use CHAR columns for records to be transferred to a legacy machine that calls for fixed-width strings.

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