* queryString: original source text of command * context: identifies source of statement (toplevel client command, * non-toplevel client command, subcommand of a larger utility command) * params: parameters to use during execution * dest: where to send results * completionTag: points to a buf...
百度试题 结果1 题目In SQL, the command to drop a table is ( ). A. remove table B. delete table C. clear table D. drop table 相关知识点: 试题来源: 解析 D 反馈 收藏
Use the TRUNCATE TABLE command (deletes only the data inside the table): 当我们只想将表内的数据做完成清楚而保留其内部结构的话,可以使用TRUNCATE TABLE命令(仅仅删除表中的数据) TRUNCATE TABLE table_name
TheDROP TABLEcommand deletes a table in the database. The following SQL deletes the table "Shippers": ExampleGet your own SQL Server DROPTABLEShippers; Note:Be careful before deleting a table. Deleting a table results in loss of all information stored in the table!
Drop tables from Command prompt in SQL Server, sqlcmd -S YourServerName -d "YourDatabaseName" -Q "DROP TABLE [YourTableName];" If you need to specify your Username (and possibly password), then it's -U (and -P) respectively. Share. Improve this … ...
DROP TABLE TheDROP TABLEcommand deletes a table in the database. The following SQL deletes the table "Shippers": Example DROPTABLEShippers; Try it Yourself » TRUNCATE TABLE TheTRUNCATE TABLEcommand deletes the data inside a table, but not the table itself. ...
The SQL DROP command is used to drop the whole table. In other words, it deletes the entire records as well as the schema and structure of the table along with its named elements. The DROP command is a Data Definition Language (DDL) command. In addition, this command can also be used...
CREATETABLEbookshelf(BOOK_IDNUMBER,BOOK_NAMEVARCHAR2(100),BOOK_TYPEVARCHAR2(100),AUTHORVARCHAR2(100),INTIMEDATE); 表名为:bookshelf,有列:图书id,图书名称,图书类型,作者,入库时间。通过上面学习的SELECT语法,来查询一下这张表: SELECT * FROM bookshelf; ...
--语 句功能 --数据操作 SELECT --从数据库表中检索数据行和列 INSERT --向数据库表添加新数据行 DELETE --从数据库表中删除数据行 UPDATE --更新数据库表中的数据 --数据定义 CREATE TABLE --创建一个数据库表 DROP TABLE --从数据库中删除表 ALTER TABLE --修改数据库表结构 CREATE VIEW --创建一个...
drop database 库名;:删除一个数据库。 ALTER DATABASE 库名 DEFAULT CHARACTER SET 编码格式 DEFAULT COLLATE 排序规则:修改数据库的编码格式、排序规则。 1.3、MySQL表相关的命令 对于MySQL表相关的命令,首先来聊一聊创建表的SQL命令,如下: CREATE TABLE `库名`.`表名` ( 字段名称1 数据类型(精度限制) [字...