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https://dev.mysql.com/doc/refman/9.7/en/jdv-examples.html
To demonstrate the different DML operations you can execute on JSON duality views, create the customers and orders relational tables. CREATE TABLE customers ( customer_id INT PRIMARY KEY, name VARCHAR(100) ); CREATE TABLE orders ( order_id INT ...
https://dev.mysql.com/doc/refman/9.7/en/json-duality-views-syntax.html
The CREATE JSON RELATIONAL DUALITY VIEW statement is an extension of the CREATE VIEW statement. There are some additional clauses with CREATE JSON RELATIONAL DUALITY VIEW, and some restrictions on the SELECT statement. The result set is structured ...
https://dev.mysql.com/doc/refman/9.7/en/ldml-collation-example.html
To add a UCA collation for a Unicode character set without recompiling MySQL, use the following procedure. If you are unfamiliar with the LDML rules used to describe the collation's sort characteristics, see Section 12.14.4.2, “LDML Syntax ...
https://dev.mysql.com/doc/refman/9.7/en/limit-optimization.html
If you need only a specified number of rows from a result set, use a LIMIT clause in the query, rather than fetching the whole result set and throwing away the extra data. MySQL sometimes optimizes a query that has a LIMIT row_count clause and no ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-disk-data-objects.html
NDB Cluster Disk Data storage is implemented using the following objects: Tablespace: Acts as containers for other Disk Data objects. A tablespace contains one or more data files and one or more undo log file groups. Undo log file: Contains undo ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-limitations-database-objects.html
Some database objects such as tables and indexes have different limitations when using the NDBCLUSTER storage engine: Number of database objects. The maximum number of all NDB database objects in a single NDB Cluster—including databases, tables, ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-dict-obj-tree.html
The dict_obj_tree table provides a tree-based view of table information from the dict_obj_info table. This is intended primarily for use in testing, but can be useful in visualizing hierarchies of NDB database objects. This means that you must know ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-online-operations.html
MySQL NDB Cluster supports online table schema changes using ALTER TABLE ... NDB Cluster handles COPY and INPLACE as described in the next few paragraphs. For ALGORITHM=COPY, the mysqld NDB Cluster handler performs the following actions: Tells the ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-select-all.html
ndb_select_all prints all rows from an NDB table to stdout. Usage ndb_select_all -c connection_string tbl_name -d db_name [> file_name] Options that can be used with ndb_select_all are shown in the following table. --connect-retries Command-Line ...
https://dev.mysql.com/doc/refman/9.7/en/mysqlbinlog-row-events.html
The following examples illustrate how mysqlbinlog displays row events that specify data modifications. These correspond to events with the WRITE_ROWS_EVENT, UPDATE_ROWS_EVENT, and DELETE_ROWS_EVENT type codes. The --base64-output=DECODE-ROWS and ...