current position:Home>Table a and table B, after changing sides, use explain. The result is a little unexpected. Why
Table a and table B, after changing sides, use explain. The result is a little unexpected. Why
2022-02-02 22:48:49 【CSDN Q & A】
Separate use explain
analysis ,test1
Tabular Primary key id
relation test2
Tabular test_id
test2 Index of tables
Come on, come on , Discuss the duck together
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https://en.primo.wiki/2022/02/202202022248469753.html
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