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Rechercher dans le manuel MySQL
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https://dev.mysql.com/constant-folding-optimization.html
If the constant is one of the decimal types (such as DECIMAL, REAL, DOUBLE, or FLOAT) and has a nonzero decimal portion, it cannot be equal; fold accordingly. A REAL value that is too small to be represented as DECIMAL is rounded to .01 or -.01 ...
https://dev.mysql.com/mysql-real-connect-nonblocking.html
enum net_async_status mysql_real_connect_nonblocking(MYSQL *mysql, const char *host, const char *user, const char *passwd, const char *db, unsigned int port, const char *unix_socket, unsigned long client_flag) Note mysql_real_connect_nonblocking() ...For general information about writing asynchronous C API applications, see Section 28.7.12, “C API Asynchronous ...
https://dev.mysql.com/mysql-real-query-nonblocking.html
enum net_async_status mysql_real_query_nonblocking(MYSQL *mysql, const char *stmt_str, unsigned long length) Note mysql_real_query_nonblocking() is an asynchronous function. It is the counterpart of the mysql_real_query() synchronous function, for ...For general information about writing asynchronous C API applications, see Section 28.7.12, “C API Asynchronous ...
https://dev.mysql.com/mysql-real-connect.html
MYSQL *mysql_real_connect(MYSQL *mysql, const char *host, const char *user, const char *passwd, const char *db, unsigned int port, const char *unix_socket, unsigned long client_flag) Note mysql_real_connect() is a synchronous function. Its ...The ...
https://dev.mysql.com/mysql-real-escape-string-quote.html
unsigned long mysql_real_escape_string_quote(MYSQL *mysql, char *to, const char *from, unsigned long length, char quote) This function creates a legal SQL string for use in an SQL statement. mysql_real_escape_string_quote() quotes the other ...The ...
https://dev.mysql.com/mysql-real-escape-string.html
unsigned long mysql_real_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length) This function creates a legal SQL string for use in an SQL statement. Note mysql_real_escape_string() fails and produces an CR_INSECURE_API_ERR ...In this case, the function cannot escape quote characters except by doubling them, and to do this properly, it must know more information about the quoting context than is ...
https://dev.mysql.com/mysql-real-query.html
int mysql_real_query(MYSQL *mysql, const char *stmt_str, unsigned long length) Note mysql_real_query() is a synchronous function. Its asynchronous counterpart is mysql_real_query_nonblocking(), for use by applications that require asynchronous ...
https://dev.mysql.com/mysql-cluster-ndbd-definition.html
There is no maximum size, but in reality the maximum size has to be adapted so that the process does not start swapping when the limit is reached. This can be used to help guarantee the cluster's real-time characteristics. Important Beginning with ... The [ndbd] and [ndbd default] sections are used to configure the behavior of the cluster's data ...
https://dev.mysql.com/glossary.html
Experienced users can adjust the isolation level, trading off less protection in favor of increased performance and concurrency, when they can be sure that the transactions really do not interfere with each other. Careful planning ensures that the ... These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/udf-calling.html
For real functions, the default is 13 plus the number of decimal digits indicated by initid->decimals. This section describes the different functions that you need to define when you create a simple UDF. Section 29.4.2, “Adding a New User-Defined ...
Document created the 26/06/2006, last modified the 26/10/2018
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