Search Results
https://dev.mysql.com/doc/c-api/8.4/en/mysql-hex-string.html
The return value can be placed into an SQL statement using either X'value' or 0xvalue format. Return Values The length of the encoded string that is placed into to, not including the terminating null character. unsigned long mysql_hex_string(char ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-9-4-0.html
(Bug #38044940) A java.sql.Time instance created from a negative millisecond value, when inserted into a database via using a PreparedStatement, lost its fractional part of the seconds. (Bug #115845, Bug #36954268) Inserting unsigned big numbers ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndbinterpretedcode.html
If no instructions have been defined, this method attempts to insert a single interpret_exit_ok() method call prior to finalization. NdbInterpretedCode::load_const_null() Description This method is used to load a NULL value into a register. This ...
https://dev.mysql.com/doc/connectors/en/connector-net-programming-prepared.html
Prepared statements can provide significant performance improvements on queries that are executed more than one time. Prepared execution is faster than direct execution for statements executed more than once, primarily because the query is parsed ...
https://dev.mysql.com/doc/connector-net/en/connector-net-programming-prepared.html
Prepared statements can provide significant performance improvements on queries that are executed more than one time. Prepared execution is faster than direct execution for statements executed more than once, primarily because the query is parsed ...
https://dev.mysql.com/doc/internals/en/dbug-sleep.html
In cases where the normal server code does not have a block point at the critical place, one can insert an artificial synchronization point. If this is not possible, the test must be moved into a test file that includes 'have_debug.inc'.
https://dev.mysql.com/doc/internals/en/myisam-introduction.html
MySQL creates files named Table1.MYD ("MySQL Data"), Table1.MYI ("MySQL Index"), and Table1.frm ("Format"). These files will be in the directory: /<datadir>/<database>/ For example, if you use Linux, you might find the files in the ...
https://dev.mysql.com/doc/internals/en/optimizer-partition-selection.html
If a partitioned table is accessed in a series of index lookups (that is, using the ref, eq_ref, or ref_or_null access methods), MySQL checks to see whether it needs to make index lookups in all partitions or that it can limit access to a ...
https://dev.mysql.com/doc/internals/en/tracing-example.html
The statement's execution is naturally made of "steps": "steps": [ { "join_preparation": { This is a join's preparation "select#": 1, for the first SELECT of the statement (which has only one, here). "rest_of_plan": [ { "database": "test", "table": ...
https://dev.mysql.com/doc/ndbapi/en/ndb-examples-secondary-indexes-ndbrecord.html
*/ NdbDictionary::RecordSpecification spec[2]; spec[0].column= col1; spec[0].offset= offsetof(MyTableRow, attr1); // So that it goes nicely into the struct spec[0].nullbit_byte_offset= 0; spec[0].nullbit_bit_in_byte= 0; const NdbRecord *pk_record= ... This program illustrates how to use secondary indexes in the NDB API with the aid of the NdbRecord ...