1.oracle精進 強走索引使用;
2.oracle閃回數據維護使用;
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3.數據庫機制,鎖表解決;
mysql 刪除表中重複數據容易造成的鎖表問題:
https://blog.csdn.net/qq_33824312/article/details/79098795
sql執行原理(執行流程與順序):
https://blog.csdn.net/sj349781478/article/details/78248586
數據庫鎖相關問題(容易造成死鎖的幾種情況):
https://zm10.sm-tc.cn/?src=l4uLj4zF0NCdk5CY0ZyMm5HRkZqL0IyekpWKjIuWkc7Qno2LlpyTmtCbmouelpOM0MrNzc7Pzs3K&uid=6ac5c82f1aae40c7a6e157a3fa6a0417&hid=776397c732a4bc0ebae29ae61040943a&pos=13&cid=9&time=1542454419497&from=click&restype=1&pagetype=0020004002000402&bu=news_natural&query=%E6%95%B0%E6%8D%AE%E5%BA%93%E9%94%81%E5%B8%B8%E8%A7%81%E9%94%81%E8%A1%A8%E6%83%85%E5%86%B5&mode=&v=1&force=true&wap=false&uc_param_str=dnntnwvepffrgibijbprsvdsdichei
數據庫隔離性不可重讀、可重讀、可串行化解釋(感覺下述解釋存在一點問題):
https://www.2cto.com/database/201806/755882.html