mysql> SHOW TABLES FROM schema_name; ORmysql> SHOW TABLES IN schema_name; These are the basic queries that help you to fetch basic details from a schema. However, you also modify this query more, which will fetch the exact result you want as well as you can get fancier with it....
.getTables(databaseName,null, "%", types); String tableName= "";while(resultSet.next()) { tableName= resultSet.getString(3); log.info("Table Name = " +tableName); } resultSet.close();//--- LISTING DATABASE COLUMN NAMES ---DatabaseMetaData meta =conn.getMetaData(); resultSet= ...
port="3306",user="root",password="123456",database="mydatabase")# 获取游标cursor=connection.cursor()# 查询具有相同字段的所有表tables=find_tables_with_same_column(cursor,"your_column_name")# 输出结果fortableintables:print(table[0])#
`persons`.`name`='john' and `data`.`personid`=`persons`.`personid` and `data`.`col1` between 20 and 80 and `data`.`col2` between 1 and 12.5 Subject Written By Posted link two tables with column names Cedric Paul November 03, 2016 12:09PM ...
④输入use mysql;,进入MySQL自身的系统数据库,然后输入show tables;查看所有表。 ⑤查询MySQL中注册的所有用户:select user,host,password from user;。 ⑥使用update语句,更改root超级管理员的账号密码,如下: update user set password=password('123') where user="root" and host="localhost"; 复制代码 因为My...
Indexes are used to find rows with specific column values quickly. Without an index, MySQL must begin with the first row and then read through the entire table to find the relevant rows. 就好比给你一本书和一篇文章标题,如果没有目录,让你找此标题对应的文章,可能需要从第一页翻到最后一页;如果...
Reading table informationforcompletion of table and column names You can turn off this feature to get a quicker startup with -A Database changed# 7. 进入mysql数据库(文件夹),查看此数据库下的所有表。mysql> show tables; +---+ | Tables_in_mysql | +---+ | columns...
数据备份不仅仅是开发、运维需要了解、熟练和掌握,一些架构设计或系统设计也需要熟练掌握,以备不时之需。最多的应用应该是编制文档上面的技术方案或者安全方案中涉及。 逻辑备份参数选项 从上一篇文章中,可以得到逻辑备份的格式如下: mysqldump [options] db_name[tbl_name...] ...
However, you can also specify that you want your columns to be nested below the table name like this: var options = {sql: '...', nestTables: true}; connection.query(options, function (error, results, fields) { if (error) throw error; /* results will be an array like this now: ...
i want to find out foreign key columns along with their table name by giving the input as table name and primary key column name. Suppose, student(T) is having a primary key as student_id, and now this key is shared among different tables as a foreign key such as ...