Stops the replication threads. From MySQL 8.0.22, use STOP REPLICA in place of STOP SLAVE, which is now deprecated. In releases before MySQL 8.0.22, use STOP SLAVE. STOP REPLICA requires the REPLICATION_SLAVE_
Some CHANGE MASTER TO statements are allowed while the replica is running, depending on the states of the replication SQL thread and the replication I/O thread. However, using STOP SLAVE prior to executing CHANGE MASTER TO in such cases is still supported. See Section 13.4.2.1, “CHANGE MASTE...
SQL is by design an incomplete computer language, so the answers are 1:no, 2:no, and generally, it'snotdesigned for data-driving database object names. In a relational database, the usual method for what you're trying to do is to carry a key date column in the table (obviating the...
In MySQL 5.7, theDELAYEDkeyword is accepted but ignored by the server. For the reasons for this, seeSection 13.2.5.3, “INSERT DELAYED Statement”, Inserting into a table requires theINSERTprivilege for the table. If theON DUPLICATE KEY UPDATEclause is used and a duplicate key causes anUPDATE...
during theCommitphase of a DDL operation is present in the redo log and binary log, the operation is considered successful and is rolled forward. Otherwise, the incomplete data dictionary transaction is rolled back whenInnoDBreplays data dictionary redo logs, and the DDL operation is rolled back....
and 0 if an existing row is set to its current values. If you specify theCLIENT_FOUND_ROWSflag to themysql_real_connect()C API function when connecting tomysqld, the affected-rows value is 1 (not 0) if an existing row is set to its current values. SeeSection 15.2.7.2, “INSERT ....
If you specify the CLIENT_FOUND_ROWS flag to the mysql_real_connect() C API function when connecting to mysqld, the affected-rows value is 1 (not 0) if an existing row is set to its current values. See Section 15.2.7.2, “INSERT ... ON DUPLICATE KEY UPDATE Statement”. INSERT ...