rename table name in sql

SQL statement-obtain the database name, table name, stored procedure, and parameter list I have been familiar with data transfer services of different databases. To facilitate data import and export, I developed a small tool to export and import data, the SQL statements tha

ConstraintName? 1 ALTER TABLE student DROP CONSTRAINT PK__student__2F36BC5B772B9A0B 10. Adding field constraints Format: ALTER TABLE tablename ADD constraint ConstraintName primary key (column_name) --Example 1? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ALTER TABLE stuInfo ADD CONSTRA

constraint UQ _stuno, delete if EXISTS (SELECT * from sysobjects WHERE name= ' uq_stuid ' and xtype= ' UQ ') Alter TABLE stuinfodrop Constraint U q_stuidgo--add unique constraint uq_stuidalter TABLE stuinfo add CONSTRAINT uq_stuid Unique (stuid)--Example 4 add default DF constraint Constraint)--there is a default constraint Uq_stuno, delete if EXISTS (SELECT * f

A. rename a table Rename the table oldtablename to newtablename: Exec sp_rename 'oldtablename', 'newtablename' B. rename a columnRename the column oldname in table 1 to newname.Exec sp_rename 'table1. oldname', 'newname', 'co

server| variable | solve Recently wrote procedure, encountered some problems. I think the question of "Use variable name as table name" is more valuable, write and share with us. Please do not hesitate to enlighten me if you have a good solution. Scene: If you are writing procedure, create a table dynamically based

Tags: plsql developer text EditingOriginal works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the following sources, otherwise, the legal responsibility to pursue copyright.Deep Blue Blog:http://blog.csdn.net/huangyanlong/article/details/41513537Experiment: Use PL/SQL developer software to get the text form of table name and column n

xtype= ' PK ') Alter TABLE stuinfo Drop Constraint Pk_stuno Go--Re-add PRIMARY KEY constraint Pk_stuno ALTER TABLE stuinfo add CONSTRAINT pk_stuno PRIMARY key (Stuno) Go--Example 3 adds a unique UQ constraint (unique CONSTRAINT)--exists only A constraint Uq_stuno, delete the IF EXISTS (SELECT * from sysobjects WHERE name= ' uq_stuid ' and xtype= ' UQ ') Alter

SQL statement query the table name/column name/primary key/automatic Growth Value in the database---- Query tables created by users in the database---- Jsj01 indicates the database name.Select name tablename from jsj01.. sysobjects where type = 'U' and

MySQL command rename tables rename table syntax RENAME TABLE tbl_name to new_tbl_name[, tbl_name2 toNew_tbl_name2,...]Renaming is performed atomically (atomically), which means that when the name change is running, no other threa

= single user; Use sp_dboption to set. Only one user can access the database at a time.32768 = emergency mode.4194304 = autoshrink.1073741824 = cleanly shutdown. You can open multiple locations at the same time. For example, determine whether a database is offline.Select * From master. dbo. sysdatabases where name = 'pubs' and status Check whether the table object exists in

This article describes how to use SQL statements to determine whether table names and field names exist. This article describes how to use SQL statements to determine whether table names and field names exist. 1. Whether the field exists The Code is as follows: If (count (*) from syscolumns

, we need to use a way to help us automatically generate modified statements, and then copy out to execute it.Modify Table Name:1 Select ' ALTER TABLE " '| | table_name| | ' '| | UPPER (table_name) | | ' ; ' from where table_nameModify Field Name:1 Select ' '| | table_name| | '