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Absrtact: Winning is the word we want to see at work or in life. Everyone needs to get their own success. As an optimizer, if there is no competition in the heart of winning, it is impossible to make a contribution to optimization. The word "Win" today is the words that we most want to see in our work or life. Everyone needs to get their own success. As an optimizer, if there is no competition in the heart of winning, it is impossible to make a contribution to optimization. The author today to break down this word, found that contains a few of our optimization experience, first of all, we put ...

Absrtact: With the strong support of a series of national policies, new energy vehicles have been developed vigorously in 2014 to achieve the annual sales of nearly 80,000 vehicles. In the 2015, the new Energy vehicle market is expected to explode completely has become the consensus of all parties. Since the current representatives of the two Council members of the public in a series of national policies of strong support, new energy vehicles in 2014 has been vigorously developed to achieve nearly 80,000 annual sales. In the 2015, the new Energy vehicle market is expected to explode completely has become the consensus of all parties. From the current public proposal of the NPC and CPPCC representatives, the development of new energy vapor ...

mysql tutorial to modify the table / field to add / delete table index create table test (blob_col blob, index (blob_col (10))); In mysql 5.1, myisam and innodb table prefix can reach 1000 bytes long. Note that the prefix limit should be measured in bytes, while the prefix length in the create table statement is interpreted as the number of characters. Must be considered when specifying the prefix length for columns that use multi-byte character sets. ...