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https://dev.mysql.com/doc/internals/en/event-data-for-specific-event-types.html
It is necessary for statements such as INSERT INTO t VALUES(1) that don't specify the database and rely on the default database previously selected by USE. SELECT fails after inserting 1000 rows into a MyISAM table (for example, with a duplicate-key ...A value indicating the variable type: LAST_INSERT_ID_EVENT = 1 or INSERT_ID_EVENT ... The following sections provide details ...
https://dev.mysql.com/doc/refman/8.4/en/merge-table-problems.html
The INSERT_METHOD table option for a MERGE table indicates which underlying MyISAM table to use for inserts into the MERGE table. However, use of the AUTO_INCREMENT table option for that MyISAM table has no effect for inserts into the MERGE table ...
https://dev.mysql.com/doc/workbench/en/wb-sql-editor-navigator.html
However, this item inserts the SQL code directly into the SQL Query panel, where it can be edited further as required. Double-clicking a table, view, or column name in the schema explorer inserts the name into the SQL Query area. However, this item ...Load Spatial Data: Imports a shapefile (.shp) containing spatial data to load into ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-sets.html
This section describes the collations available for Unicode character sets and their differentiating properties. MySQL supports multiple Unicode character sets: utf8mb4: A UTF-8 encoding of the Unicode character set using one to four bytes per ...
https://dev.mysql.com/doc/refman/8.4/en/json-utility-functions.html
When the argument is a JSON column, this is the space used to store the JSON document as it was inserted into the column, prior to any partial updates that may have been performed on it afterwards. This section documents utility functions that act ...
https://dev.mysql.com/doc/refman/8.4/en/precision-math-examples.html
Consider these statements: mysql> CREATE TABLE t (i INT, d DECIMAL, f FLOAT); mysql> INSERT INTO t VALUES(1,1,1); mysql> CREATE TABLE y SELECT AVG(i), AVG(d), AVG(f) FROM t; The result is a double only for the floating-point argument. In strict ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/glossary.html
Monitoring can help to diagnose problems, spot worrisome trends before they turn into problems, reassure when systems are operating normally, and notify when an operator needs to take corrective action. If your network has this kind of monitoring ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-transaction-isolation-levels.html
For other search conditions, InnoDB locks the index range scanned, using gap locks or next-key locks to block insertions by other sessions into the gaps covered by the range. Because gap locking is disabled, phantom row problems may occur, as other ...It is not recommended to mix locking statements (UPDATE, INSERT, DELETE, or SELECT ...
https://dev.mysql.com/doc/refman/8.4/en/string-functions.html
CHAR() arguments larger than 255 are converted into multiple result bytes. mysql> SELECT X'616263', HEX('abc'), UNHEX(HEX('abc')); -> 'abc', 616263, 'abc' mysql> SELECT HEX(255), CONV(HEX(255),16,10); -> 'FF', 255 INSERT(str,pos,len,newstr) Returns ...For functions that operate on string positions, the first position is numbered ...
https://dev.mysql.com/doc/connector-odbc/en/connector-odbc-examples-programming-vb-ado.html
The following ADO (ActiveX Data Objects) example creates a table my_ado and demonstrates the use of rs.addNew, rs.delete, and rs.update. rs.Open "SELECT * FROM my_ado" rs!Name = "update" rs!txt = "updated-second-time" rs.Update rs.Close 'rs delete ...