I want Microsoft SQL server queries corresponding to the following Oracle queries
//get schema of a table
desc tablename;
//get the names of all tables
select * from tab;
You have access to that info through metadata tables. Check this link out.
INFORMATION_SCHEMA.Tables -> gives you access to table names
INFORMATION_SCHEMA.Columns -> gives you access to column names
Here is another link with a complete list of catalog tables.
INFORMATION_SCHEMA.CHECK_CONSTRAINTS
INFORMATION_SCHEMA.COLUMN_DOMAIN_USAGE
INFORMATION_SCHEMA.COLUMN_PRIVILEGES
INFORMATION_SCHEMA.COLUMNS
INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE
INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE
INFORMATION_SCHEMA.DOMAIN_CONSTRAINTS
INFORMATION_SCHEMA.DOMAINS
INFORMATION_SCHEMA.KEY_COLUMN_USAGE
INFORMATION_SCHEMA.PARAMETERS
INFORMATION_SCHEMA.REFERENCIAL_CONSTRAINTS
INFORMATION_SCHEMA.ROUTINE_COLUMNS
INFORMATION_SCHEMA.ROUTINES
INFORMATION_SCHEMA.SCHEMA_DATA
INFORMATION_SCHEMA.TABLE_CONSTRAINTS
INFORMATION_SCHEMA.TABLE_PRIVILEGES
INFORMATION_SCHEMA.TABLES
INFORMATION_SCHEMA.VIEW_COLUMN_USAGE
INFORMATION_SCHEMA.VIEW_TABLE_USAGE
INFORMATION_SCHEMA.VIEWS
Keep in mind though, that you will probably need special permission to access those tables/views.
The other thing you might try as an alternative is using ODBC, Java, .NET or any other programming language or library to access metadata information. They have complete access to that through their APIs.
Table desctiption:
sp_help table_name
All tables in the current database:
select * from sysobjects where xtype='U'
And you can use sysobjects, syscolumns, sysindexes etc. tables to get the information about database structure.
Related
There are several tables with many columns and it takes forever to manually find the column I need. How do I search for my column from whatever table it exists in?
You can do:
SELECT COLUMN_NAME, TABLE_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_NAME LIKE '%columnName%'
You can use the sys.columns view and then join to the sys.tables view to get that information.
Is there any way to find particular column in Linked Server's database within all tables.
I guess solution lies in
EXEC sp_columns_ex
SELECT t.name as TableName, c.name as ColumnName
FROM servernamehere.databasenamehere.sys.columns c
INNER JOIN servernamehere.databasenamehere.sys.tables t ON c.object_id = t.object_id
WHERE c.name like '%yoursearchhere%'
How about this:
EXECUTE [MyLinkedServer].[MyLinkedDB].dbo.sp_executesql
N'SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE ...'
And fill in the where clause depending on what you want to search for?
An alternative would be creating a view that selects from INFORMATION_SCHEMA.COLUMNS and then you query that instead.
Reference for Information_Schema.Columns
It would depend on which database your linked server is pointing to. For example, if it is Oracle, you would use Oracle syntax, if it is SQL Server, Sql Server Syntax.
The fact that you are querying the schema through a Linked server shouldnt matter.
Is there an HSQLDB equivalent for the MYSQL SHOW COLUMNS from TABLE command?
HSQLDB does not have separate commands for showing tables, columns or other database objects.
You use SELECT * FROM INFORMATION_SCHEMA.COLUMNS and various other tables in the INFORMATION_SCHEMA for such purposes.
http://hsqldb.org/doc/2.0/guide/databaseobjects-chapt.html#dbc_information_schema
This is the query that you need.
SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = '<your schema>' AND TABLE_NAME = '<name table or view>';
I have to add a few columns to a table and I also need to add these columns to all the views that use this table.
Is it possible to get a list of all the views in a database that use a certain table?
This should do it:
SELECT *
FROM INFORMATION_SCHEMA.VIEWS
WHERE VIEW_DEFINITION like '%YourTableName%'
To find table dependencies you can use the sys.sql_expression_dependencies catalog view:
SELECT
referencing_object_name = o.name,
referencing_object_type_desc = o.type_desc,
referenced_object_name = referenced_entity_name,
referenced_object_type_desc =so1.type_desc
FROM sys.sql_expression_dependencies sed
INNER JOIN sys.views o ON sed.referencing_id = o.object_id
LEFT OUTER JOIN sys.views so1 ON sed.referenced_id =so1.object_id
WHERE referenced_entity_name = 'Person'
You can also try out ApexSQL Search a free SSMS and VS add-in that also has the View Dependencies feature. The View Dependencies feature has the ability to visualize all SQL database objects’ relationships, including those between encrypted and system objects, SQL server 2012 specific objects, and objects stored in databases encrypted with Transparent Data Encryption (TDE)
Disclaimer: I work for ApexSQL as a Support Engineer
If you need to find database objects (e.g. tables, columns, triggers) by name - have a look at the FREE Red-Gate tool called SQL Search which does this - it searches your entire database for any kind of string(s).
It's a great must-have tool for any DBA or database developer - did I already mention it's absolutely FREE to use for any kind of use??
I find this works better:
SELECT type, *
FROM sys.objects
WHERE OBJECT_DEFINITION(object_id) LIKE '%' + #ObjectName + '%'
AND type IN ('V')
ORDER BY name
Filtering VIEW_DEFINTION inside INFORMATION_SCHEMA.VIEWS is giving me quite a few false positives.
SELECT VIEW_NAME
FROM INFORMATION_SCHEMA.VIEW_TABLE_USAGE
WHERE TABLE_NAME = 'Your Table'
select your table -> view dependencies -> Objects that depend on
Simplest way to find used view or stored procedure for the tableName using below query -
exec dbo.dbsearch 'Your_Table_Name'
I am using SQL Server 2005. I am trying to SELECT a list of tables in one of my database. Here is my structure of my SQL Server:
- <IP>(SQL Server 9.0 -userlogin)
- Databases
- Company
- Tables
- dbo.UserDB
- dbo.detailsDB
- dbo.goodsDB
I would like to retrieve the values of dbo.UserDB, dbo.detailsDB, dbo.goodsDB
But i do not know what is the exact sql query needed.
I have tried many ways like
SELECT * FROM userlogin.Tables; and
SELECT * FROM userlogin.Company.Tables;, but none of them works.
I have seen quite a few posts which suggests using show databases and show tables, but they don't seem to work as well.
Is it possible to select a list of table names in a database in the first place?
Thank you for any help in advance.
Thanks for the MSDNA link that #TomTom provided, I can now list my tables in my database.
However, I would want to list specific tables where TABLE_NAME contains "user".
How can I do it? I am trying on the following sql but it is not displaying result at the moment:
SELECT DISTINCT TABLE_NAME
FROM Company.INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME LIKE '%"user"%';
GO
Try the iNFORMATION_SCHEMA.
http://msdn.microsoft.com/en-us/library/ms186778.aspx
They contain all the schema information you need.
Use the new sys system catalog in SQL Server 2005 and up:
SELECT Name
FROM sys.tables
WHERE is_ms_shipped = 0 -- only list *your* tables - not the system / MS table
You can read more about system catalog views and how to query them in the MSDN Books Online - and be warned - there's lots more to read and learn!
You could use this
Use ***database name***
SELECT *
FROM sys.tables
WHERE name like '%user%'
Sorry, have seen that #marc_s has provided the answer before me!
You can use INFORMATION_SCHEMA as told by #TomTom:
USE <<YOUR_DB_NAME>>
SELECT TABLE_SCHEMA + '.' + TABLE_NAME, *
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
ORDER BY TABLE_SCHEMA + '.' + TABLE_NAME
You can customize above query as per your requirements.
For your other question to find tables where the name contains 'user', execute the following statement:
USE <<YOUR_DB_NAME>>
Exec sp_tables '%user%'
Try:
SELECT *
from sysobjects
where type = 'U' AND
NAME LIKE '%user%'
GO