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How does the load data statement in MySQL work?
The LOAD DATA statement reads rows from a text file into a table at a very high speed. The file can be read from the server host or the client host, depending on whether the LOCAL modifier is given. LOCAL also affects data interpretation and error handling. LOAD DATA is the complement of SELECT…
How to load sample database into MySQL database server?
You will need to enter the password for the root user account to log in. Use the source command to load data into the MySQL Server: Use the SHOW DATABASES command to list all databases in the current server: The output will look like the following that includes the newly created classicmodels database:
Why does MySQL not know where my database is?
The output will list all files in that directory, it should contain at least the following plus any databases you have created. If the data directory or socket has been moved and MySQL doesn’t know where they are, fix the configuration file to point to the correct directories. You can search for the folders with the following command.
How does a local load operation work in MySQL?
For a LOCAL load operation, the client program reads a text file located on the client host. Because the file contents are sent over the connection by the client to the server, using LOCAL is a bit slower than when the server accesses the file directly.
The LOAD DATA statement reads rows from a text file into a table at a very high speed. LOAD DATA is the complement of SELECT INTO OUTFILE. (See Section 13.2.9.1, “SELECT INTO Statement” .) To write data from a table to a file, use SELECT INTO OUTFILE. To read the file back into a table, use LOAD DATA.
How does the load data statement in Oracle work?
LOAD DATA interprets all fields in the file as having the same character set, regardless of the data types of the columns into which field values are loaded. For proper interpretation of the file, you must ensure that it was written with the correct character set.
How are fields and lines specified in outfile statement?
INTO OUTFILE statements, the syntax of the FIELDS and LINES clauses is the same. Both clauses are optional, but FIELDS must precede LINES if both are specified. If you specify a FIELDS clause, each of its subclauses ( TERMINATED BY , [OPTIONALLY] ENCLOSED BY, and ESCAPED BY) is also optional, except that you must specify at least one of them.
How to send a load data statement to the server?
The syntax of the FIELDS and LINES clauses is the same for both statements. The mysqlimport utility provides another way to load data files; it operates by sending a LOAD DATA statement to the server. See Section 4.5.5, “mysqlimport — A Data Import Program” .