![]() ![]() ![]() Running the command as root still works correctly, only happens when it is not root running the command. Try running create user as superuser and it will work now fine:ĬREATE USER IF NOT EXISTS OK, 0 rows affected, 1 warning (0.01 sec)Ĭreate trigger with testing user as definer:ĬREATE TABLE account (acct_num INT, amount DECIMAL(10,2)) ĬREATE TRIGGER ins_sum BEFORE INSERT ON account FOR EACH ROW SET = + NEW.amount Īnd now try to create user as superuser and it will end in error:ĬREATE USER IF NOT EXISTS 4006 (HY000): Operation CREATE USER failed for as it is referenced as a definer account in a trigger. Martin Bezdíček I have tested it on version 8.0.29 now and directly MySQL and not using Percona at all.ĬREATE USER ALTER, ALTER ROUTINE, CREATE, CREATE ROLE, CREATE ROUTINE, CREATE TABLESPACE, CREATE TEMPORARY TABLES, CREATE USER, CREATE VIEW, DELETE, DROP, DROP ROLE, EVENT, EXECUTE, FILE, INDEX, INSERT, LOCK TABLES, PROCESS, REFERENCES, RELOAD, REPLICATION CLIENT, REPLICATION SLAVE, SELECT, SHOW DATABASES, SHOW VIEW, SHUTDOWN, SUPER, TRIGGER, UPDATE ON *.* TO testinguser:ĬREATE USER IF NOT EXISTS ALTER, ALTER ROUTINE, CREATE, CREATE ROLE, CREATE ROUTINE, CREATE TABLESPACE, CREATE TEMPORARY TABLES, CREATE USER, CREATE VIEW, DELETE, DROP, DROP ROLE, EVENT, EXECUTE, FILE, INDEX, INSERT, LOCK TABLES, PROCESS, REFERENCES, RELOAD, REPLICATION CLIENT, REPLICATION SLAVE, SELECT, SHOW DATABASES, SHOW VIEW, SHUTDOWN, SUPER, TRIGGER, UPDATE ON *.* TO (Not all the rights are necessary) And I have not found anywhere in documentation that IF NOT EXISTS in CREATE USER should not work if user mentioned is definer.Ĭreate user and make it a definer account in a view or in a trigger and try to create it again with IF NOT EXISTS it will end in ERROR.ĬREATE USER IF NOT EXISTS 4006 (HY000): Operation CREATE USER failed for as it is referenced as a definer account in a view.ĬREATE USER IF NOT EXISTS 4006 (HY000) at line 947: Operation CREATE USER failed for as it is referenced as a definer account in a trigger.įix it in the code CREATE USER procedure. This is one of at least two ways to create a table only if it doesn’t exist in Oracle.We are running restores for developers and also want to use backup of privileges for the dev environment after restore of data, but if the user is definer of view or trigger it will end in error when running privileges backup created using pt-show-grants and thus having create user if not exists as the part causing issue.Īs long as the users are not definers of view or trigger it works fine. We then only run the CREATE TABLE statement if it doesn’t already exist. Here, we checked the DBA_TABLES data dictionary view to see if the table already exists. One option is to check the DBA_TABLES data dictionary view: DECLARE Oracle Database doesn’t support the CREATE TABLE IF NOT EXISTS statement either, so we also need to use a different method with Oracle. This is one of at least two methods for creating a table only if it doesn’t exist in SQL Server. Therefore, we can check for a NULL value, and only create the table if this function returns NULL. If the object doesn’t exist, or if we don’t have access to it, the function returns NULL. ![]() The OBJECT_ID() returns the database object identification number of a schema-scoped object. In this case we use U, which is for “user defined table”. The second argument specifies the type of object we’re looking for. In this example we’re checking the object ID of a dbo.t1 table. One option is to use the OBJECT_ID() function to check for the existence of the table before we try to create it: IF OBJECT_ID(N'dbo.t1', N'U') IS NULL SQL Server doesn’t support the CREATE TABLE IF NOT EXISTS statement, so we need to use another option. The CREATE TABLE IF NOT EXISTS statement isn’t supported by SQL Server or Oracle (at least not at the time of writing), but we can use one of the methods below. The CREATE TABLE IF NOT EXISTS statement can be used with RDBMSs such as MySQL, MariaDB, PostgreSQL, and SQLite. In this case, the table will only be created if there isn’t already one called t1. Here, t1 is the table name, and everything between the parentheses is the table definition (i.e. Many RDBMSs support the IF NOT EXISTS clause of the CREATE TABLE statement which makes it easy to create a table only when it doesn’t already exist. Here are some examples of doing this in various RDBMSs. Doing this prevents any errors from occurring in the event that the table already exists. When creating a table with SQL, we can specify that the table is only to be created if it doesn’t already exist. ![]()
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