function extract

PG processing time is very flexible, +-*/both have supportIt's useful to have a extract function in the meantime, let's take a look at a few examples: [code]postgres=# Select Extract (Epoch from ' 1970-01-01 ':: timestamp);Date_part-----------0(1

Define and use the PHP extract () function to import variables from the array into the current symbol table. For each element in the array, the key name is used for the variable name, and the key value is used for the variable value. The second

Define and use the PHP extract () function to import variables from the array into the current symbol table. For each element in the array, the key name is used for the variable name, and the key value is used for the variable value. The second

Definitions and usage The PHP extract () function imports variables from the array into the current symbol table. For each element in the array, the key name is used for the variable name, and the key value is used for the variable value. The

Oracle's extract () function is introduced from Oracle 9i to intercept a specific part from a date or interval type The syntax is as follows: Extract ( year| Month | Day | | | Second} | | Timezone_minute} | |

Analysis of PHP function extract () application skills. For example, you can easily extract $ _ POST or $ _ GET elements. you cannot assign one-to-one values to the content submitted in the form. you can directly use the following code: form.html

PHP has been written to know that it has a extract () is very convenient, you can easily convert the dictionary to variables, of course, to the ASP will be limited to a lot of, especially VBScript script, this article describes the idea of a

For example, you can easily extract $ _ POST or $ _ GET elements. You cannot assign one-to-one values to the content submitted in the form. You can directly use the following code: Form.html  FormAction = "action. php" method = "post"> 

The definition and usage of the extract () function in PHP. Define and use the PHPextract () function to import variables from the array to the current symbol table. For each element in the array, the key name is used for the variable name, and the

Recently, when looking at a cow's code, see a very useful function: Extract (), its main function is to expand the array, the key name as the variable name, the element value is the variable value, you can say that the operation of the array