no means no quotes

SQL double quotes and single quotes Delimiters are used only for identifiers. Delimiters cannot be used for keywords, regardless of whether they are marked as reserved words in SQL Server.Quoted identifiers are separated by double quotation marks ("

single quotes, double quotes, and escape characters in PHP http://blog.csdn.net/river131/article/details/9186203Category: PHP notes 2013-06-27 11:37 875 people read Comments (0) Favorites report escape characters PHP PHP single and double quotes

1. Single quotation mark (') # grep Susan Phonebook Susan Goldberg 403-212-4921 Susan Topple 212-234-2343 If we're looking for Susan Goldberg and can't use the grep Susan Goldberg Phonebook command directly, grep treats Goldberg and phonebook as

The shell can recognize 4 different types of caret symbols: single quote character ' double quote character ' backslash character \ Inverted quote character ' 1. Single quotation mark (') # grep Susan Phonebook Susan Goldberg 403-212-4921 Susan

The difference between "" (double quotation marks) and "(single quote) 　 You hit the keyboard behind the shell prompt, and until you press ENTER, the text you typed is command line, and the shell executes the command you submitted in a process

[Reprinted] differences between single quotes, double quotes, and anti-quotes in linux shell, linuxshell Linux shell can recognize four different types of leading characters: single quotes character 'double quotation marks character "backslash

PHP single and double quotation marks can modify the string type of data, if the decorated string contains variables (example $name), The biggest difference is: double quotation marks will replace the value of the variable, and the single quotation

When the angel used Oracle, he found that the use of single and double quotation marks was different. Then he checked some information online and made some summary: Double quotation marks: when an object is created, the object name and field name

When using Oracle, I found that the use of single and double quotation marks is different. I checked some information online and summarized it myself: Double quotation marks: when an object is created, the object name, When using Oracle, I found

Blankyao said, "The process of learning is to constantly find mistakes, and constantly correct mistakes"; Let's see what the manual says! For the average person, look at the first two paragraphs. Magic Quotes Code: Magic Quotes is a process this