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setttl

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포커스 모드

폰트 크기

마지막 업데이트 시간: 2024-12-04 10:12:05

Overview
This command is used to set a time to live (TTL) in millisecond for a record. The set value will be reduced by the elapsed time. When the TTL value of a record is equal to 0, TcaplusDB will remove it. This command only takes effect on a single record.
Syntax
setttl [table] ttl=[TTL] where key1 = 1 and key2 = "abc";
Parameters
Parameter
Required
Limit
Description
table
Yes
No
Table name
TTL
Yes
The value cannot exceed half of the maximum value of uint64\\_t. In other words, the maximum TTL value is ULONG_MAX/2. A value exceeded this limit will be set to the maximum value.
Time to live in millisecond
Key in the WHERE clause
Yes
All key values are required for TDR table.
Key values need to be declared. Multiple key values are joined with and.
Errors
For more information, see Error Codes.
Return Messages
Situation
Return Message
The record does not exist or has expired.
Record does not exist or has expired.
Failed to set time to live.
Failed to set time to live. The error code is [error code] and the error message is [Error message].
Set time to live successfully.
Set time to live successfully.
Sample
Set TTL to 2,000 milliseconds:
tcaplus> setttl mails ttl=2000 where key1 = 1 and key2 = "abc";
Set time to live successfully.

도움말 및 지원

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TencentDB for TcaplusDB

setttl

Overview

Syntax

Parameters

Errors

Return Messages

Sample

도움말 및 지원

Parameter	Required	Limit	Description
table	Yes	No	Table name
TTL	Yes	The value cannot exceed half of the maximum value of `uint64\\_t`. In other words, the maximum TTL value is ULONG_MAX/2. A value exceeded this limit will be set to the maximum value.	Time to live in millisecond
Key in the WHERE clause	Yes	All key values are required for TDR table.	Key values need to be declared. Multiple key values are joined with `and`.

Situation	Return Message
The record does not exist or has expired.	Record does not exist or has expired.
Failed to set time to live.	Failed to set time to live. The error code is [error code] and the error message is [Error message].
Set time to live successfully.	Set time to live successfully.