teradata create table with primary key

DECLAREICount number (2): = 0;BEGINSelect count (*) INTO iCount FROM user_sequences u WHERE u. sequence_name = 'seq _ TCAPITALNOTIFY ';IF iCount = 0THEN/* Create sequence */Execute immediate 'create sequence SEQ_TCAPITALNOTIFY minvalue 1 nomaxvalue start with 1 increment by 1 ';End if;Select count (*) INTO iCount FROM user_tables u WHERE u. TABLE_NAME = 'tcapital=y ';IF iCount = 0THEN/*

Create Table ds_tcategory -- problem category information table (categoryidint identity () primary key, -- category ID, primary key, automatically increasing categorynamevarchar (20) un

\ ' database name \ ', \ ' autoshrink\ ', \ ' true\ '\\\ ' Add field general functionSub AddColumn (Tablename,columnname,columntype)Conn.execute (\ "Alter Table \" tablename\ "ADD \" columnname\ "\" columntype\ "\")End Sub\\\ ' Change field general functionSub Modcolumn (Tablename,columnname,columntype)Conn.execute (\ "Alter Table \" tablename\ "alter Column \" columnname\ "\" columntype\ "\")End Sub\\\ '

Reprint for self-study ERROR 1075 (42000): incorrect table definition; There can is only one auto column and it must be defined as a key Mysql> CREATE TABLE ANIMALS1 ( -> grp ENUM (' Fish ', ' mammal ', ' bird ') not NULL, -> ID mediumint not NULL auto_increment, -> name CHAR (not NULL), ->

--CREATE database Db_std_mgr_sys; UseDb_std_mgr_sys;Create TableStudent (std_idbigint not NULLAuto_increment,std_namevarchar(Ten) not NULL default "', Std_codevarchar( -) not NULL default "'Comment'study number, the value is unique', Std_sexvarchar(8) not NULL default "', Std_phonevarchar( -) not NULL default "', school_idbigint not NULL default -1Comment'Your School ID', grade_idBIGINT not NULL default

Create a table:Create table [table name]([Automatic number field] int IDENTITY (1, 1) primary key,[Field 1] nVarChar (50) default \ 'default value \ 'null,[Field 2] ntext null,[Field 3] datetime,[Field 4] money null,[Field 5] int default 0,[Field 6] Decimal (12, 4) default 0

Oracle Create PRIMARY key self-increment table 1, CREATE TABLE Test_increase (userid number) not NULL primary key,/*

="abc") @Column(name="id") private Integer id; which 1) test_sequence: The sequence name in the database, if it does not exist, will be created with an initial value of 1 and a step of 1 (PostgreSQL and Oracle, the dependent sequence implements the self-increment of the primary key) 2) @SequenceGenerator, note the use of this annotation to declare a sequence. There is a problem: I

No CREATETabletb_1 (colINTPRIMARYKEY) GO CREATE Table tb_1 (col int primary key) GO Create Table primary key constraints --> $veloci

DECLARE iCount number (2): = 0; begin select count (*) INTO iCount FROM user_sequences u WHERE u. sequence_name = 'seq _ TCAPITALNOTIFY '; www.2cto.com IF iCount = 0 THEN/* create sequence */execute immediate 'create sequence SEQ_TCAPITALNOTIFY minvalue 1 nomaxvalue start with 1 increment by 1'; end if; select count (*) INTO iCount FROM user_tables u WHERE u. TABLE_NAME = 'tcapital=y '; IF iCount = 0 THEN/*

* ** Filename: DropKeyAddKey. SQL * Description: If you want to modify the attribute of the table's primary key field, you need to delete the primary key and then recreate the primary key. The default

For example, there are three fields: Table person, person, id (mysql database, primary key, non-auto-increment), and name and pswd. In the case of auto-increment, we usually process insertintoperson (name, pswd) values (# {name}, # {pswd}) in this way. you are not allowed to insert a primary