teradata create table with primary key

Tags: style java data ar javascript amp new sizeMySQL View table structure commandShow columns from table name;1, copy table structure and data to new Table CREATE table new Table selec

Tags: database mysql database--1. Working with databasesUse Ren;--2. Create a student tableCREATE TABLE Student(Sid INT UNSIGNED PRIMARY KEY auto_increment,--UNSIGNED (unsigned) auto_increment (self-increment)Sname VARCHAR (10),--only 10 characters can be savedSaddress VARCHAR (15)-only 15 characters are saved) Engine=

performance of the sequence. 2. The syntax for removing the Oracle sequence is the drop SEQUENCE sequence name; Using sequences creates cracks.The l sequence cracks in the following cases:• Rolling back• System Exceptions Instance application: 1. Sqlplus Log In First:Sql> Conn Scott/tiger;2. Build table:drop table users; CREATE TABLE users ( ID number

Create a role tableCREATE TABLE Nbctxp. Tbl_nbc_nonbankrole (ID BIGINT not NULL,ROLENAME VARCHAR (50),Createtime TIMESTAMP,UpdateTime TIMESTAMP,CONSTRAINT p_id PRIMARY KEY (ID));CREATE INDEX SQL150130091455900 on NBCTXP. Tbl_nbc_nonbankrole (ID);Let the

Record in table: user_constraints Select A. Owner, -- Primary Key owner A. table_name, -- Primary Key table B. column_name, -- Primary

1. Get basic field attributes of the table -- Obtain the table structure in sqlserver Select Syscolumns. Name, policypes. Name, syscolumns. isnullable,Syscolumns. Length From Syscolumns, policypes Where Syscolumns. xusertype = Policypes. xusertype And Syscolumns. ID = Object_id ( ' Your table name ' ) Running Effect2. I

Add a joint primary key constraint to the table when modifying the table The add syntax is as follows: "Alter table table_name Add constraint pk_nameprimary key (Column name1, Column name2);" [Example]1] Assume that the reservatio

My BSOOC need a query table primary key foreign key information of SQL, last night research to 1 o'clock in the morning, finally can achieve this goal: Oracle: Select O.obj# as ObjectId, o.name as TableName, oc.name as ConstraintName, Decode (c.type#, 1, ' C ', 2, ' P ', 3, ' U ', 4, ' R ', 5, ' V ', 6, ' O ', 7, ' C '

. major_id and F. minor_id = 0 where D. Name = 'query table name' II,-- Query stored proceduresSelect case. xtype when 'p' then' Stored Procedure 'end as lx,. name, B. text from sysobjects a left Outer Join syscomments B on. id = B. ID where xtype = 'P'-- Query viewSelect case. xtype when 'v'then' view 'end as lx,. name, B. text from sysobjects a left Outer Join syscomments B on. id = B. ID where xtype = 'V' -- P