Kind of an obvious, newbie thing, but things like "user" vs "users" can trip people up and I thought it would be a helpful answer to have in the list here. Information schema views enable applications to work correctly although significant changes have been made to the underlying system tables. An information schema view is one of several methods SQL Server provides for obtaining metadata. When writing queries for a database you might be new to, or one that changes often, you might want to run a quick check to find all the tables in a specific database, or the columns in the database, or to search if table or column exists. same connection string, but different sql) connects and runs, but only reveals 33 tables - none of … The issue is that you need the ib* files in the root of the MySQL datadir (e.g. How to get the sizes of the tables of a MySQL database? Also, have you tried dropping and remaking the tables. Again: stop using the SYS or SYSTEM account for anything that is not DBA stuff. One "gotcha" about MySQL is that table names are case-sensitive, but actions on tables often are not. The installed version (5.7) happened to be newer than my previous one. By: Greg Robidoux Overview The INFORMATION_SCHEMA.COLUMNS view allows you to get information about all columns for all tables and views within a database. Can confirm that stopping the image, deleting these files, and restarting gave access again. Welcome to LinuxQuestions.org, a friendly and active Linux Community. How do you "immediately try to dump the table"? To post-process the output of this command, you can use the RESULT_SCAN function, which treats the output as a table that can be queried. After having to reinstall MySQL I had this same problem, it seems that during the install, some configuration files that store data about the InnoDB log files, these files ib_logfile* (they are log files right? For managed tables, renaming a table moves the table location; for unmanaged (external) tables, renaming a table does not move the table location. So I removed that underscore in the database name, everything worked out. Not everyone has the same keyboard layout. Unfortunately, Oracle does not directly support the SHOW TABLES command. Which languages have different words for "maternal uncle" and "paternal uncle"? It appears that the issue has to do (at least in mine and a few others) with invalid (corrupt?) Now, I cannot restart the database for testing, but every other application that uses it is running fine. The information schema is defined in the SQL standard and can therefore be expected to be portable and remain stable — unlike the system catalogs, which are specific to PostgreSQL and are modelled after implementation concerns. We can also use information schema views to search for the specific SQL database objects. 02 Mar - Olivia232425: Access denied for user root@, 01 Mar - BubikolRamios: Find text on server/trigger, 27 Feb - Conz: MariaDB Datatype length keeps changing, 27 Feb - Franky: MariaDB10 Stored Procedure Select with v. To solve this problem I just deleted the ib_logfile* files. In short, make sure that the new my.ini file is a replica of the old one, with the only exception being the datadir, the plugin-dir and the port#, depending upon your new installation. I wish people would indicate where the files that they reference reside... Got here from mysql docker image not having readable tables. On Mac to replicate my database locally, in addition to copying over the ibdata file (located next to the database dir) I had to. Chances are good that the table is owned by a different user, which is why Oracle is telling you that the table does not exist … A view is defined as a QUERY EXPRESSION, which is often a SELECT statement that references views and tables, but it can also consist of a TABLE CONSTRUCTOR that does not reference any tables or views. All Tables Only. So, as a workaround, go to /var/log/mysql/database_name/ and remove the table_name.*. Haven't been able to find out why exactly yet, but this also solved my problem. Please login to leave a reply, or register at first. Generally speaking, they simply need to be recreated. This bit me. I ran into this after upgrading to macOS Sierra 10.12.6. To check that the table or view exists, query the data dictionary to view a list of all existing tables and views (shown below). Msg 2797, Level 16, State 1, Procedure SearchAllTables, Line 90 The default schema does not exist. For me the problem got resolved when I changed my statement to this : I made two changes Also their name isn't what you named them; it has a hex code suffix and a bunch of underscores to disambiguate between sessions. INFORMATION_SCHEMA provides access to database metadata.. Metadata is data about the data, such as the name of a database or table, the data type of a column, or access privileges. A lot of data saved there! You no longer have to use the SHOW FILES command to explore these data sources. I could see the tables in mysql workbench but when I tried to select anything, I got "Table doesn't exist". Just to make sure nothing is wrong with the privileges and that there are no hidden characters. Consequently, I can list those files but not access them. For example, we use information_schema.Tables to find out specific tables in the SQL database.. How can the intelligence of a super-intelligent person be assessed? 2.) I reverted the value, restarted the database, exported the tables, set the value back to 1, restarted the database, re-imported the tables and everything worked again. Closed ebyhr opened this issue Jan 4, ... Schema 'test' does not exist show tables in memory.test ... Raptor connector can create table in schema which does not exists and show table works. One other answer I think is worth bringing up here (because I came here with that same problem and this turned out to be the answer for me): Double check that the table name in your query is spelled exactly the same as it is in the database. SHOW TABLES also returns me all the tables correctly, and the files of each table exists on the MySQL data directory. Furthermore this view stores the name, type and the cluster id of all the tables, views, synonyms and clusters created into the schema of the database. b) the table didn't appear where expected in the alphabetical order of my tables, which in my panic meant I couldn't see it! DBA_TABLES shows you all tables in the database. The INFORMATION_SCHEMA.TABLES system view returns one row for each table or view in the current database for which the current user has permissions. And if it is true, then it will return the first PRINT statement. Please login to leave a reply, or register at first. Used the specific quote symbol = ` : It's the key above your TAB, The solution does sound absurd, but it worked and it's Saturday evening and I've been working since 9 a.m. - So I'll take it :). I have it at the right side of my "P" key. You can create a view from any SELECTquery. The TABLES table provides information about tables in databases.. These types of tables are especially useful for storing data that does not need to be maintained for extended periods of time (i.e. Listing all the tables in SQL server when using a newer version (SQL 2005 or greater) is a matter of querying the INFORMATION_SCHEMA views which are automatically built into SQL Server. Error (1146): Table 'information_schema.tables' doesn't exist */. I Skipped ib_logfile0 and ib_logfile1 (otherwise the server did not start service). Examples Example 1: The following example retrieves table metadata for all of the tables in the dataset named mydataset.The query selects all of the columns from the INFORMATION_SCHEMA.TABLES view except for is_typed, which is reserved for future use.The metadata returned is for all tables in mydataset in your default project — myproject.. mydataset contains the following tables: Is there a link between democracy and economic prosperity? Copy only ibdata1 file from your old data directory. Existing user tables and views can be listed by querying the data dictionary. However, the support of the information schema makes it possible to change the structure of system tables without changing the access to metadata. 08 Mar - jwan: Solving Assigning CTRL+ENTER as a Shortcut, 08 Mar - jwan: Cannot set shortcut to Ctrl-ENTER, 04 Mar - RiddlerX2: MariaDB connect engine.