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https://dev.mysql.com/doc/refman/8.4/en/blob.html
A BLOB is a binary large object that can hold a variable amount of data. These differ only in the maximum length of the values they can hold. These correspond to the four BLOB types and have the same maximum lengths and storage requirements. They ...
https://dev.mysql.com/doc/refman/8.4/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/8.4/en/case-sensitivity.html
For nonbinary strings (CHAR, VARCHAR, TEXT), string searches use the collation of the comparison operands. For binary strings (BINARY, VARBINARY, BLOB), comparisons use the numeric values of the bytes in the operands; this means that for alphabetic ...
https://dev.mysql.com/doc/refman/8.4/en/charset-collation-implementations.html
MySQL implements several types of collations: Simple collations for 8-bit character sets This kind of collation is implemented using an array of 256 weights that defines a one-to-one mapping from character codes to weights. It is a case-insensitive ...
https://dev.mysql.com/doc/refman/8.4/en/charset-connection.html
A “connection” is what a client program makes when it connects to the server, to begin a session within which it interacts with the server. The client sends SQL statements, such as queries, over the session connection. The server sends ...
https://dev.mysql.com/doc/refman/8.4/en/crashing.html
Each MySQL version is tested on many platforms before it is released. This does not mean that there are no bugs in MySQL, but if there are bugs, they should be very few and can be hard to find. If you have a problem, it always helps if you try to ...
https://dev.mysql.com/doc/refman/8.4/en/create-table-select.html
You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement: CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl; MySQL creates new columns for all elements in the SELECT. For example: mysql> CREATE ...
https://dev.mysql.com/doc/refman/8.4/en/csv-storage-engine.html
The CSV storage engine stores data in text files using comma-separated values format. The CSV storage engine is always compiled into the MySQL server. To examine the source for the CSV engine, look in the storage/csv directory of a MySQL source ...
https://dev.mysql.com/doc/refman/8.4/en/cursors.html
Cursors have these properties: Asensitive: The server may or may not make a copy of its result table Read only: Not updatable Nonscrollable: Can be traversed only in one direction and cannot skip rows Cursor declarations must appear before handler ...
https://dev.mysql.com/doc/refman/8.4/en/derived-tables.html
For information about lateral derived tables preceded by the LATERAL keyword, see Section 15.2.15.9, “Lateral Derived Tables”. A derived table is an expression that generates a table within the scope of a query FROM clause. For example, a ...