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https://dev.mysql.com/doc/refman/5.7/en/federated-usagenotes.html
The remote table that a FEDERATED table points to must exist before you try to access the table through the FEDERATED table. The following items indicate features that the FEDERATED storage engine does and does not support: The remote server must be ...
https://dev.mysql.com/doc/refman/5.7/en/fetch.html
If a row exists, the fetched columns are stored in the named variables. This statement fetches the next row for the SELECT statement associated with the specified cursor (which must be open), and advances the cursor pointer. The number of columns ...
https://dev.mysql.com/doc/refman/5.7/en/file-permissions.html
If you have problems with file permissions, the UMASK or UMASK_DIR environment variable might be set incorrectly when mysqld starts. For example, mysqld might issue the following error message when you create a table: ERROR: Can't find file: ...
https://dev.mysql.com/doc/refman/5.7/en/full-text-adding-collation.html
This section describes how to add a user-defined collation for full-text searches using the built-in full-text parser. The sample collation is like latin1_swedish_ci but treats the '-' character as a letter rather than as a punctuation character so ...
https://dev.mysql.com/doc/refman/5.7/en/fulltext-boolean.html
The words might not be in the index because of a combination of factors: if they do not exist in the text, are stopwords, or are shorter than the minimum length of indexed words. MySQL can perform boolean full-text searches using the IN BOOLEAN ...
https://dev.mysql.com/doc/refman/5.7/en/fulltext-search-mecab.html
The built-in MySQL full-text parser uses the white space between words as a delimiter to determine where words begin and end, which is a limitation when working with ideographic languages that do not use word delimiters. To address this limitation ...
https://dev.mysql.com/doc/refman/5.7/en/fulltext-search-ngram.html
The built-in MySQL full-text parser uses the white space between words as a delimiter to determine where words begin and end, which is a limitation when working with ideographic languages that do not use word delimiters. To address this limitation, ...
https://dev.mysql.com/doc/refman/5.7/en/fulltext-search.html
For large data sets, it is much faster to load your data into a table that has no FULLTEXT index and then create the index after that, than to load data into a table that has an existing FULLTEXT index. MATCH (col1,col2,...) AGAINST (expr ...
https://dev.mysql.com/doc/refman/5.7/en/getting-information.html
You can obtain the CREATE TABLE statement necessary to create an existing table using the SHOW CREATE TABLE statement. What if you forget the name of a database or table, or what the structure of a given table is (for example, what its columns are ...
https://dev.mysql.com/doc/refman/5.7/en/gis-geometry-class-hierarchy.html
The instantiable subclasses of Geometry are restricted to zero-, one-, and two-dimensional geometric objects that exist in two-dimensional coordinate space. The geometry classes define a hierarchy as follows: Geometry (noninstantiable) Point ...