How much is the data delay when you collect Oracle data? I can't keep it down for 3 seconds. Is there an industry reference

Are there any big men who have successfully collected ？ Let me refer to ？ How long have you been delayed ？

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Take the answer 1：

Now the synchronization speed can reach 1 Seconds . Measured , Namely insert now(), then flink Subtract the current time inside , We are also 5 Seconds （ This answer is collated from Flink CDC Community ）

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