如何在每次更新查询中获取mysql中受影响的行数

Question

是否有任何可能性用于捕获每个更新查询中影响的行数，该查询记录到mysql的binlog中。任何人请分享

感谢

Answer 1

这是将使用mysqlbinlog可以输出和打印的INSERT/UPDATE一个美丽的汇总/ DELETE从基于行的二进制日志事件awk脚本。
只需将您的二进制日志文件mysqld-bin.000023替换为--start-datetime="2015-01-12 21:40:00"和--stop-datetime="2015-01-12 21:45:00"并选择您喜欢的值即可。 Source

mysqlbinlog --base64-output=decode-rows -vv --start-datetime="2015-01-12 21:40:00" --stop-datetime="2015-01-12 21:45:00" mysqld-bin.000023 | awk \ 
'BEGIN {s_type=""; s_count=0;count=0;insert_count=0;update_count=0;delete_count=0;flag=0;} \ 
{if(match($0, /#15.*Table_map:.*mapped to number/)) {printf "Timestamp : " $1 " " $2 " Table : " $(NF-4); flag=1} \ 
else if (match($0, /(### INSERT INTO .*..*)/)) {count=count+1;insert_count=insert_count+1;s_type="INSERT"; s_count=s_count+1;} \ 
else if (match($0, /(### UPDATE .*..*)/)) {count=count+1;update_count=update_count+1;s_type="UPDATE"; s_count=s_count+1;} \ 
else if (match($0, /(### DELETE FROM .*..*)/)) {count=count+1;delete_count=delete_count+1;s_type="DELETE"; s_count=s_count+1;} \ 
else if (match($0, /^(# at) /) && flag==1 && s_count>0) {print " Query Type : "s_type " " s_count " row(s) affected" ;s_type=""; s_count=0; } \ 
else if (match($0, /^(COMMIT)/)) {print "[Transaction total : " count " Insert(s) : " insert_count " Update(s) : " update_count " Delete(s) : " \ 
delete_count "] \n+----------------------+----------------------+----------------------+----------------------+"; \ 
count=0;insert_count=0;update_count=0; delete_count=0;s_type=""; s_count=0; flag=0} } ' 

样本输出

Timestamp : #150112 21:40:14 Table : `test`.`t` Query Type : INSERT 1 row(s) affected 
Timestamp : #150112 21:40:14 Table : `test`.`t` Query Type : UPDATE 1 row(s) affected 
Timestamp : #150112 21:40:14 Table : `test`.`t` Query Type : DELETE 1 row(s) affected 
[Transaction total : 3 Insert(s) : 1 Update(s) : 1 Delete(s) : 1] 
+----------------------+----------------------+----------------------+----------------------+ 

Answer 2

您可以尝试

Select Row_Count();