dolphin 20

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Dolphin browser opens APIs to third-party applications

Today, dolphin browser developer baina officially announced that it will open browser API interfaces to third-party developers, allowing developers to develop browser extensions that are easy to use. The dolphin browser supports Android and iOS

SQL optimization (SQL TUNING) 10 minutes completed billion-level data Volume performance optimization (SQL tuning)

A few days ago. A user develops QQ to find me, for example the following:The free Dolphin. 16:12:01The island owner, my SQL can not find the results, could you help me see?Orchid Island Main 16:12:10How long is the result?The Free Dolphin

SQL optimization (SQL TUNING) 10-minute completion of billions of data volume performance optimization (SQL tuning)

A few days ago, a user developed QQ to find me, as follows:The free Dolphin. 16:12:01The island owner, my SQL can not find the results, could you help me see?Orchid Island Main 16:12:10How long is the result?The Free Dolphin 16:12:17How long has not

Optimize hundreds of millions of data queries in 10 minutes and query hundreds of millions of data records

Optimize hundreds of millions of data queries in 10 minutes and query hundreds of millions of data records A user developed QQ to contact me a few days ago, as shown below: Free dolphins. 16:12:01 Island Lord, I cannot find the result of one of my

Optimize hundreds of millions of data queries in 10 minutes

A few days ago, a user developed QQ to contact me, as shown below: Free dolphins. At 16:12:01 AM, I couldn't find the result of one of my SQL statements. Can you check it for me? How long will it take for an orchid island owner to arrive at 16:12:10?

Optimize hundreds of millions of data queries in 10 minutes

A user developed QQ to contact me a few days ago, as shown below: Free dolphins. 16:12:01 Island Lord, I cannot find the result of one of my SQL statements. Can you check it for me? Orchid island master 16:12:10 How long will it take?

Short-term Black horse stock selection stunt

One setting of basic technical analysis parameters I have made some necessary changes to the technical parameters of the Money Dragon dynamic. : 1, EMA system Parameters Day candlestick three 5, 10, 30 is changed to 10, 15, 21. 30 the three 5,

Troubleshooting of command line: Suggestions for linux beginners)

From 1991 to now, linux has been born for more than 20 years. although he is only one year younger than me, he has gone a long way. Moreover, he is more reliable and stable than before. However, linux is still faulty. I believe you can judge and fix

MongoDB Aggregation (RPM)

Aggregation refers to the various operations that can handle batch records and return results. MongoDB provides rich aggregation operations for performing calculation operations on datasets. Performing aggregation operations on an Mongod instance

Fight to eat puffer fish

Today, I finally took a trip to the legendary puffer fish. The body of the bucket is round and the big abdomen and tail of the top and chest are small. There are bright marks or colors on the back, and the surface is not scaly, smooth or slightly

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