mysql if exists

✓ MySQL-test-5.6.12-2.linux_glibc2.5.i386.rpmMySQL-shared-5.6.12-2.linux_glibc2.5.i386.rpmMySQL-embedded-5.6.12-2.linux_glibc2.5.i386.rpmMySQL-c 1 decompress MySQL [root @ localhost test] # tar-xvf MySQL-5.6.12-2.linux_glibc2.5.i386.rpm-bundle.tar

Problems occurred during MySQL installation: bitsCN.com Problems during MySQL installation 1> decompress MySQL [html] [root@localhost test]# tar -xvf MySQL-5.6.12-2.linux_glibc2.5.i386.rpm-bundle.tar

Installation RequirementsInstallation Environment: CentOS-6.3Installation Method: source code compilation installationSoftware Name: mysql-cluster-gpl-7.2.6-linux2.6-x86_64.tar.gzDownload Address: http://mysql.mirror.kangaroot.net/Downloads/Software

Problems During MySQL installation 1> decompress MySQL [html] [root@localhost test]# tar -xvf MySQL-5.6.12-2.linux_glibc2.5.i386.rpm-bundle.tar MySQL-test-5.6.12-2.linux_glibc2.5.i386.rpm MySQL-shared-5.6.12-2.linux_glibc2.5.i386.rpm MySQL-

When mysql processes a unique index, it updates the index. If it does not exist, it should be very common to insert the index. There are many similar articles on the Internet, today I will talk about the problems and methods that may occur when this

Similarly, using the goods table to practice subqueries, the table structure is as follows:All data (cat_id associated with category.cat_id):Category table:Mingoods (test when connecting queries)First, sub-query 1,where sub-query: The result of the

Insert when MySQL record does not existIn MySQL, inserting (insert) A record is very simple, but some special applications, before inserting the record, need to check whether this record already exists, only if the record does not exist, the insert

Li Wu:Heng Learn to think together, honouring teachers save Thanksgiving. Leaf See root three return to one, rivers the same oneness.Meekness Conscience Lord, willing to do without regrets to the most bitter. Reading exercises to keep the body and

Insert when the MySQL record does not exist In MySQL, inserting a record is very simple, but in some special applications, before inserting a record, you need to check whether the record already exists. The insert operation is performed only when

How to configure MySQL database server on CentOS BitsCN.com accidentally found CentOS Professional Forum, remember: http://www.centospub.com As a result, the initial learning configuration This environment: CentOS system, Mysql-server (version