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赵全文 — oracle ace
目前就职于太极计算机股份有限公司,做oracle dba的客户驻场运维工作。具有8年多的oracle工作经验,擅长oracle数据库的sql脚本编写、故障诊断和性能优化,目前侧重于sql和pl/sql代码的研究,热衷并且乐于和全世界的aces交流oracle技术。 【坚持做的事】: 从2018年至今,在自己的博客上发表52篇原创文章 曾在微信公众号(“数据与云”、“数字oracle”、“dbaplus社群”)上多次发表原创文章 坚持在github上发布原创linux shell脚本,sql和pl/sql代码和一些有趣的demo 曾在livesql上发布一些经典的demo 【社交媒体】: linkedin: http://www.linkedin.com/in/quanwen-zhao-6ba9a4137/ twitter: https://www.twitter.com/quanwen_zhao blog: https://quanwenzhao.wordpress.com github: https://github.com/guestart 【livesql-经典demo脚本】 observing spending time of separately querying count(*|1|id|flag) on some test tables 链接:https://livesql.oracle.com/apex/livesql/file/content_jgd1k9m8cfmjp34imkxee2qz7.html sparse index, function-based index and virtual column 链接:https://livesql.oracle.com/apex/livesql/file/content_jh25jl4rr5olfe6xsyeojuakm.html is this a bug on live sql for checking real execution plan using 'statistics_level is all' ? 链接:https://livesql.oracle.com/apex/livesql/s/jhfss3ppup9assnnkcnmgz8un observing the execution plan of top-n and pagination query and finding optimal solution 链接:https://livesql.oracle.com/apex/livesql/s/jqosla421vqfn51s7bpk94z3f checking real execution plan(s) of separately querying count(*|1|id|flag) on 4 different test table(s) 链接:https://livesql.oracle.com/apex/livesql/s/jgcgwprxaexzzdx150rt8pqr3 checking real execution plan(s) of separately querying count(*|1|id|flag) on 4 different test2 table(s) 链接:https://livesql.oracle.com/apex/livesql/s/jgcgwprxa0tgage6esvjanowj checking real execution plan(s) of separately querying count(*|1|id|flag) on 4 different test3 table(s) 链接:https://livesql.oracle.com/apex/livesql/s/jgcgwprxbmowliwanky8clm0z checking real execution plan(s) of separately querying count(*|1|id|flag) on 4 different test4 table(s) 链接:https://livesql.oracle.com/apex/livesql/s/jgcgwprxb8kcwldewc2xejk5f
quanwen zhao
taiji comp corp., ltd. oracle dba
2018-10-30 加入墨天轮
quanwen zhao
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