mysql>show tables;+---+|Tables_in_mysql|+---+|columns_priv||db||engine_cost||event||func||general_log||gtid_executed||help_category||help_keyword||help_relation||help_topic||innodb_index_stats||innodb_table_stats||ndb_binlog_index||plugin||proc||procs_priv||proxies_priv||server_co...
characters] [-y variable length type display width] [-Y fixed length type display width] [-p[1] print statistics[colon format]] [-R use client regional setting] [-b On error batch abort] [-v var = "value"...] [-X[1] disable commands[and exit with warning]] [-? show syntax ...
SHOW DATABASES [like_or_where] SHOW ENGINE engine_name {STATUS | MUTEX} SHOW [STORAGE] ENGINES SHOW ERRORS [LIMIT [offset,] row_count] SHOW EVENTS SHOW FUNCTION CODE func_name SHOW FUNCTION STATUS [like_or_where] SHOW GRANTS FOR user SHOW INDEX FROM tbl_name [FROM db_name] SHOW MASTER...
表,视图ALTERDATABASE/SCHEMA,TABLE,VIEW--修复表,分区MSCKREPAIRTABLE(orALTERTABLERECOVERPARTITIONS)--显示数据库/SCHEMAS,表,表属性,视图,分区,函数,索引,列,建表语句SHOWDATABASES/SCHEMAS,TABLES,
show tables;show databases;show partitions;show functions;describe extended table_name dot col_name; DDL(Data Defination Language):数据库定义语言 建表: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATE[EXTERNAL]TABLE[IFNOTEXISTS]table_name[(col_name data_type[COMMENTcol_comment],...)][...
Welcome to the MySQL monitor. Commands end with;or\g. Windows 客户端连接 1.下载一个标准的 SQL 客户端,例如 MySQL Workbench 、SQLyog 等,本文以 SQLyog 为例。 2.打开 SQLyog,选择文件>新连接,输入对应的主机地址、端口、用户名和密码,单击连接。
Flush_commands 执行FLUSH命令的次数。 Handler_delete 请求从一张表中删除行的次数。 Handler_read_first 请求读入表中第一行的次数。 Handler_read_key 请求数字基于键读行。 Handler_read_next 请求读入基于一个键的一行的次数。 Handler_read_rnd 请求读入基于一个固定位置的一行的次数。
Show Databases in PostgreSQL Conclusion Summary To show a list of databases in SQL you can use these commands: Let’s see them in more detail. Show Databases in Oracle Oracle has a different server-database model to SQL Server and MySQL, called Container Databases and Pluggable Databases. I’...
The SQL language consists of commands that you use to create and manipulate database objects, run queries, load tables, and modify the data in tables. Amazon Redshift is based on PostgreSQL. Amazon Redshift and PostgreSQL have a number of important differences that you must be aware of as ...
Benefits of upsizing a database to SQL Server High performance and scalabilityIn many situations, SQL Server offers better performance than an Access database. SQL Server also provides support for very large, terabyte-sized databases, which is much larger tha...