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开发学院数据库MySQL Mysql教程:性能跟踪语句 阅读

Mysql教程:性能跟踪语句

 2008-08-30 11:07:25 来源:WEB开发网   
核心提示: | init | 0.000013 | 0| 0| 0 | 0 |0 | 0 | 0 | optimize| sql_select.cc | 745 || optimizing | 0.000008 | 0| 0| 0 | 0 |0 | 0 | 0 | optimize| sql_sele

| init              | 0.000013 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | optimize         | sql_select.cc |     745 |

| optimizing           | 0.000008 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | optimize         | sql_select.cc |     904 |

| statistics           | 0.000013 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | optimize         | sql_select.cc |     914 |

| preparing           | 0.000011 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | exec           | sql_select.cc |    1565 |

| executing           | 0.000006 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | exec           | sql_select.cc |    2083 |

| Sending data          | 1.505401 | 1.504771 | 0     |         3 |          5 |      0 |       0 |   0 | mysql_select       | sql_select.cc |    2287 |

| end              | 0.000015 | 0    | 0     |         0 |          0 |      0 |       0 |   0 | mysql_execute_command   | sql_parse.cc |    5122 |

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Tags:Mysql 教程 性能

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