Also, how to you configure the Query Browser to support multiple statements in one query string? TIA, Brian Barnett Subject Written By Posted multiple statements in one query Brian Barnett September 09, 2005 11:33AM Sorry, you can't reply to this topic. It has been closed. ...
The best way to improve the performance of SELECT operations is to create indexes on one or more of the columns that are tested in the query. But unnecessary indexes waste space and waste time for MySQL to determine which indexes to use. Indexes also add to the cost of inserts, updates, ...
40001SQL_NO_CACHE */ *FROM `tb1`3Query SET SESSION character_set_results ='binary'3Queryuse`gs`3Queryselect@@collation_database3Query SHOW TRIGGERS LIKE'tb1'3Query SET SESSION character_set_results ='utf8'3Query show table status like'user'3Query SET SQL_QUOTE_SHOW_CREATE=13Query SET ...
(1);}/* execute multiple statements */status=mysql_query(mysql,"DROP TABLE IF EXISTS test_table;\ CREATE TABLE test_table(id INT);\ INSERT INTO test_table VALUES(10);\ UPDATE test_table SET id=20 WHERE id=10;\ SELECT * FROM test_table;\ DROP TABLE test_table");if(status){printf...
COM_QUERY 消息报文 功能:最常见的请求消息类型,当用户执行SQL语句时发送该消息。 COM_FIELD_LIST 消息报文 功能:查询某表的字段(列)信息,等同于SQL语句SHOW [FULL] FIELDS FROM ...。 COM_CREATE_DB 消息报文 功能:创建数据库,该消息已过时,而被SQL语句CREATE DATABASE代替。
COM_QUERY 消息报文 功能:最常见的请求消息类型,当用户执行SQL语句时发送该消息。 COM_FIELD_LIST 消息报文 功能:查询某表的字段(列)信息,等同于SQL语句SHOW [FULL] FIELDS FROM ...。 COM_CREATE_DB 消息报文 功能:创建数据库,该消息已过时,而被SQL语句CREATE DATABASE代替。
(1);}/* execute multiple statements */status=mysql_query(mysql,"DROP TABLE IF EXISTS test_table;\ CREATE TABLE test_table(id INT);\ INSERT INTO test_table VALUES(10);\ UPDATE test_table SET id=20 WHERE id=10;\ SELECT * FROM test_table;\ DROP TABLE test_table");if(status){printf...
Posted by developer: Fixed as of the upcoming MySQL Connector/NET 8.0.32 release, and here's the proposed changelog entry from the documentation team: When executing multiple Insert statements in one MySQLCommand call, the LastInsertedId property was set to zero because the connector read an ext...
MULTI_STATEMENTS - The client may send multiple statement per query or statement prepare (separated by ;). This flag is controlled by the connection option multipleStatements. (Default off) NO_SCHEMA ODBC Special handling of ODBC behaviour. This flag has no effect on this Node.js implementation...
February 23, 2019 09:13AM Re: Multiple If statements on one line Shawn Green February 28, 2019 05:03PM Re: Multiple If statements on one line Shawn Green February 28, 2019 05:07PM Sorry, you can't reply to this topic. It has been closed....