Is there an elegant (read: easy to remember) way to drop multiple tables in one command with a wildcard? SQL Server Using LIKE with Wildcards LIKE is a powerful keyword used along with the WHERE clause to lookup and retrieve data from your database tables. NOTE: The last echo is there because I couldn't find a way to put quotes around the drop command, so you need to … Making statements based on opinion; back them up with references or personal experience. A wildcard table represents a union of all the tables that match the wildcard expression. SELECT ' DROP DATABASE [' + NAME + ']' FROM sys.sysdatabases where name like 'PREFIX%' Copy the output and execute this to drop Databases in your criteria. You may need to modify the query to include the owner if there's more than one in the database. Changing Map Selection drawing priority in QGIS. I am trying to figure out a way, using a sql statement, to join two tables where the join field from one table (table2) is only the first few characters of the field from the second table (table1). How safe is it to supply power to a linear regulator output? Thanks for contributing an answer to Stack Overflow! How to exit from PostgreSQL command line utility: psql. You can also schedule this on a daily basis with a little tweaking. As we can see, we check the existence of the #LocalCustomer table in the tempdb database, and if it exists, we have to drop it. Is there a more modern version of "Acme", as a common, generic company name? and drop them so we can start a clean test cycle. Can I simply use multiple turbojet engines to fly supersonic? Oracle, SQL Server, MySQL, PostgreSQL). > I am working with MS SQL Server 6.5 and need to find a way, via a script > or a stored procedure, to drop several tables (and all their foreign > keys and constraints) when all I know are the basenames of the tables. This developer built a…, drop all tables sharing the same prefix in postgres, Drop all functions in a namespace? DANGER: Mess up your query, delete some or all of your databases. So, if we just specify Not like with the ‘%’ wildcard character in SQL Like clause, add one additional condition and place it in the same statement as above we should get a query like this: Does C++ guarantee identical binary layout for "trivial" structs with a single trivial member? The multiple objects drop approach is applicable to all versions of SQL Server. The following example uses the [] operator to find a string that begins with a number or a series of special characters. Note: Make sure SQL Server Agent is running under an account that has enough access to all the folders and server names that you are passing as parameters. With tax-free earnings, isn't Roth 401(k) almost always better than 401(k) pre-tax for a young person? IF NOT EXISTS let you to instruct MySQL server to check the existence of a database with a similar name prior to creating database. Phantom Postgres table exists but can't be dropped? 6. Asking for help, clarification, or responding to other answers. Wildcard tables … DROP TABLE wildcard. (where c.relname ilike 'bubba%'), So, save that to a .sql file and run it with psql -f filename.sql. It works in ubuntu and maybe some other os too. I’ve written more about regular expressions in SQL here. I know it's too specific I just wanted to share. Thanks for your help. How to drop all tables in a SQL Server database? Understanding the behavior of C's preprocessor when a macro indirectly expands itself. When during construction of them, did Bible-era Jewish temples become "holy"? SQL Wildcard Characters. When working with partitions, there is often a need to delete all partitions at once. Also, we will see SQL Wildcard example and SQL Wildcard Characters. exec (@sql) The variable @sql will have drop table statements concatenated for each table. What do you roll to sleep in a hidden spot? Was there an organized violent campaign targeting whites ("white genocide") in South Africa? Copy the output and execute this to drop Databases in your criteria. USING Alter Table Drop Coulmn on #TempTables. It will have the string drop table tmp_test drop table tmp_emp drop table tmp_data. As the database evolves, we will need to remove the obsolete and redundant tables from the database. With tax-free earnings, isn't Roth 401(k) almost always better than 401(k) pre-tax for a young person? I loaded my server db through pgadmin3 and did it that way. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. 9. Or you can use a regular expression that matches your criteria. T-SQL Rename Multiple Tables Forum – Learn more on SQLServerCentral ... SQL Server 2008; T-SQL (SS2K8) ... #276712. Thanks for answering! By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Restore SQL database from disc copy backup, unable to drop and create database in sql server. So I faced this problem today. What is the point in delaying the signing of legislation that the President supports? If you run the same wildcard … If anyone can fix that minor issue, that'd be awesome sauce. So for 8.4.x you'd get this basic query: Which you can add a where clause to. I need to take a dump of a database containing 50 odd tables of which I want to exclude about 15 odd that have prefix exam_. A wildcard table enables you to query multiple tables using concise SQL statements. 3. wildcard is drop table statement? Connect and share knowledge within a single location that is structured and easy to search. DECLARE @id varchar(255) -- used to store the table name to drop DECLARE @dropCommand varchar(255) -- used to store the t-sql command to drop the table DECLARE @namingPattern varchar(255) -- user to defie the naming pattern of the tables to drop set @namingPattern = 'Tabx%' DECLARE tableCursor CURSOR FOR SELECT name FROM sys.tables WHERE name like @namingPattern OPEN tableCursor FETCH next FROM tableCursor INTO @id WHILE @@fetch_status=0 BEGIN -- Prepare the sql … The wildcard functionality in SQL applies to all vendors of SQL (e.g. declare @sql varchar (8000) set @sql=''. I've always felt way more comfortable creating a sql script I can review and test before I run it than relying on getting the plpgsql just right so it doesn't blow away my database. Let's create a sample data set using the AdventureWorks2016 database. Why don't we see the Milky Way out the windows in Star Trek? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Then you'll see a lot of tables in the terminal. How to center vertically small (tiny) equation numbered tags? DROP TABLE using Upsizing Tool, SQL Server 6.0 and DRI. However, it's not practical for dropping 20 tables at once (or more). And be carefull, this one might destroy your entire database. Reset identity seed after deleting records in SQL Server. 4. What would justify those road like structures. Data virtualization and data load using PolyBase 2. DECLARE @sql NVARCHAR (MAX) = N''; SELECT @sql += ' DROP TABLE ' + QUOTENAME (s.name) + '.' Is there a link between democracy and economic prosperity? + QUOTENAME (t.name) + ';' FROM sys.tables AS t INNER JOIN sys.schemas AS s ON t. [schema_id] = s. [schema_id] WHERE t.name LIKE 'LG_001%'; PRINT @sql; -- EXEC sp_executesql @sql; Of course there are potential gotchas, for example if these tables have foreign key relationships, you'll either need to drop them first, or arrange the output to drop the tables … 1. 2. Open python, do some string processing(replace ' ' by '' and then '\n' by ',') and you get comma separated list of all tables. Join Stack Overflow to learn, share knowledge, and build your career. Developed film has dark/bright wavy line spanning across entire film. PostgreSQL: How to change PostgreSQL user password? do a \dt in postgres command prompt(the command prompt was running inside genome-terminal in my case). Currently, cached results are not supported for queries against multiple tables using a wildcard even if the Use Cached Results option is checked. In theory you can so it using a function. Tables are sorted alphabetically so shift and click followed by delete works well. Problem: SQL Server 7 using ASP - Using wildcards with Field Names. Conclusion. Let's call this new table customer. No, the wildcard for table names can only be *, and does not permit other characters or patterns. Let’s create a new table named sales.price_lists for the demonstration. Sorry, this is the only option you have. To learn more, see our tips on writing great answers. SELECT ' DROP DATABASE [' + NAME + ']' FROM sys.sysdatabases where name like 'prefix%'. You could generate the 18 GRANT statements you need: SELECT CONCAT('GRANT SELECT,INSERT,UPDATE,DELETE ON prod.`', TABLE_NAME, '` TO ...;') FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'prod' AND TABLE_NAME LIKE 'vs\_%'; In this SQL Tutorial, we are going to study SQL Wildcard. CREATE DATABASE IF NOT EXISTS database1 CHARACTER SET latin1 COLLATE latin1_swedish_ci Looking on advice about culture shock and pursuing a career in industry. Introduction to SQL DROP TABLE statement. 5. What is the name of the retracting part of a dog lead? I want to delete all of them, can I use wild char like DOS command: This procedure accepts Server name, Database Name, Filepath, pattern (wildcard) and table name as parameters. Which Green Lantern characters appear in war with Darkseid? It allows you to do partial matching on a string and is a useful feature of SQL. How to travel to this tower with a gorgeous view toward Mount Fuji? Does not work. I'll refocus the question to be clearer. I am looking to rename a lot of tables using a wildcard… You could construct a stored function for this, but there is a good chance you will shoot yourself in the foot: dropping too many tables... Function added, have fun! External data sources are used to establish connectivity and support these primary use cases: 1. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. I left the EXEC statement commented out just to try to avoid someone doing doing this through copy/paste. DECLARE @cmd varchar (4000) DECLARE cmds CURSOR FOR SELECT 'drop table [' + Table_Name + ']' FROM INFORMATION_SCHEMA.TABLES WHERE Table_Name LIKE 'prefix%' OPEN cmds WHILE 1 = 1 BEGIN FETCH cmds INTO @cmd IF @@fetch_status != 0 BREAK EXEC (@cmd) END CLOSE cmds; …
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