PostgreSQL日期函数备忘 PostgreSQL日期函数备忘 http://www.postgresql.org/docs/current/static/functions-formatting.html Date/Time Functions and Operators Table 9-27 shows the available functions for date/time value proce
9.9.4. Current Date/Time PostgreSQL provides a number of functions that return values related to the current date and time. These SQL-standard functions all return values based on the start time of the current transaction: CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_TIME(precision) CURRENT...
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PostgreSQL provides a wide range of built-in functions to work with date and time values, such as NOW(), EXTRACT(), DATE_PART(), etc. To get a specific date filed, the EXTRACT() and DATE_PART() functions are used in Postgres. However, these functions return the date field as an in...
-DATE_TRUNC():Truncates/trims unnecessary values from the DateTime and retrieves a result with specific precision. Its return type is TIMESTAMP with TIMEZONE. Let’s comprehend how these functions work via the following examples. Example 1: Get Today’s DateTime With Timezone ...
Takes a single “compressed” value of a field, for example aDateRangeField, and returns a tuple representing a lower and upper bound. Previous page and next page PostgreSQL specific model fields PostgreSQL specific database functions Download: ...
And this function gets the current date and time… Important syntax requirement: this has to go between parentheses()! I’ll give you two examples to make this clear! If you want to get the current year, just type this: SELECT date_part('year', (SELECT current_timestamp)); ...
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This section contains reference information for the user-defined functions provided by Azure Cosmos DB for PostgreSQL. These functions help in providing distributed functionality to Azure Cosmos DB for PostgreSQL. หมายเหตุ
The PostgreSQL AGE() function subtracts two timestamps, producing a symbolic result that uses years and months. Uses of AGE() Function Calculate Age:Determine the age in years, months, and days between two dates. Date Difference:Find the difference between a specific date and the current date...