EXPLAIN PLAN FOR In SQL Developer, you don’t have to use EXPLAIN PLAN FOR statement. Press F10 or click the Explain Plan icon. It will be then displayed in the Explain Plan window. If you are using SQL*Plus then use DBMS_XPLAN. For example, See How to create and display Explain Plan
I found the solution to my problem myself, but I still don’t quite understand why it didn’t work: I granted privileges to that user on the hosts % and localhost: With these settings I got the results I showed above. When I granted privileges to that user on host it suddenly did work. Apparently % … Read more
I don’t believe MySQL supports dynamic sql. You can do “prepared” statements which is similar, but different. Here is an example: The prepared statements are often used to see an execution plan for a given query. Since they are executed with the execute command and the sql can be assigned to a variable you can approximate the some of … Read more
I would use a composite (multi-column) key. This way you can have t1ID and t2ID as foreign keys pointing to their respective tables as well.
767 bytes in MySQL version 5.6 (and prior versions), is the stated prefix limitation for InnoDB tables. It’s 1,000 bytes long for MyISAM tables. This limit has been increased to 3072 bytes In MySQL version 5.7 (and upwards). You also have to be aware that if you set an index on a big char or varchar field which is utf8mb4 encoded, you have to … Read more
My MySQL says “Incorrect table definition; there can be only one auto column and it must be defined as a key” So when I added primary key as below it started working:
Quoting mysql.com: For all forms of SUBSTRING(), the position of the first character in the string from which the substring is to be extracted is reckoned as 1.
I found on the sqlite documentation (https://www.sqlite.org/lang_datefunc.html) this text: Compute the date and time given a unix timestamp 1092941466, and compensate for your local timezone. That didn’t look like it fit my needs, so I tried changing the “datetime” function around a bit, and wound up with this: That seems to work – is that … Read more
A nice solution could be to share a directory on your host machine with the virtual machine, so you can copy your files in and out. Look at: How to share your computer files with a virtual machine
Try: Or: Or: Or: If you install the Launchctl in OSX you can try: MacPorts Note: this is persistent after reboot. Homebrew Binary installer I found that in: https://stackoverflow.com/a/102094/58768