Database Administrator

Compile and install MySQL 5.6.22 in CentOS 6.5 Compile and install MySQL 5.6.22 in CentOS 6.5. I. Preparations before MySQL compilation and Installation Install the tools and libraries required for compiling the source code. (do not make any

Oracle PL/SQL Block PL/SQL block Description: PL/SQL is the abbreviation of Procedure Language & Structured Query Language. It is an extension of standard database languages by Oracle. PL/SQL block Syntax: DeclareBeginExceptionWhen other thenEnd; PL/

MySQL innoDB redo log file I have been confused about the difference between bin log and innodb log files in mysql. I have been wondering in my mind that the binlog log file can be used for Database log backup and recovery, why is there an

Database Operations change primary keys, insert loops, and database primary keys-- Alter table HistoryData drop constraint PK_HistoryData -- delete the primary keyAlter table HistoryData add constraint PK_HistoryData primary key (CollectionTime,

Differences between Mysql versions and those downloaded from the official website Differences between Mysql versions and download from the official website   I. Differences between Mysql versions: 1,MySQL Community Server Community version, Open

When logging on to OGG, cannot open shared object file is reported for error handling. cannotshared1. Error On the Linux server, the newly installed goldengate (OGG) is used. /ggsci log on to the console and report. /ggsci: error while loading

Several data loading methods for oracle11G and oracle11gData Loading Data Loading: • SQL * LOADER • External table • Import/Export SQL * LOADER:SQL * LOADER is an ORACLE tool that can load data from external data files to databases. The command

Use SQL syscolumns to query table fields and splice the code, sqlsyscolumns We cannot avoid adding or updating data when writing code. However, if there are too many fields in a table, the amount of code to be written will increase. For example, we

After you move the core object table dependency $, the database is not started.Move table:SQL> startupORACLE instance started.Total System Global Area 281018368 bytesFixed Size 2083336 bytesVariable Size 88081912 bytesDatabase Buffers 184549376

XML-based SAX Parsing Model and xmlsax Parsing DOM parsing maps the entire XML file to the tree structure in the Document. When a large file is encountered, the memory usage is large and the search is slow. SAX is a solution to this problem. The

Gerrit database query change_id, gerritchange_id ######################################## ###################### Remote: resolving deltas: 100% (2/2) error: unpack failed: error Missing unknown failed: Unpack error, check server logTo ssh: //

Redis Research (6)-set type, redis research set type I. Introduction A set key can store up to 2 ^ 32-1 strings. In Redis, the set type is implemented using an empty hash table, so the operation complexity is O (1 ). The Union, intersection, and

The insert into statement always has an unspecified error, insertintoAuthor:Www.gudianxiaoshuo.comThis article is organized by the Code Assistant Software and released content is irrelevant to this software.More comfortable reading, more comfortable

ORACLE error 1658, oracle1658 When importing data to oracle, the following error is reported multiple times: IMP-00003: encountered ORACLE error 1659ORA-01659: unable to allocate MINEXTENTS greater than 1 (in tablespace ZSTA_DATA_TBS) IMP-00003:

Two forms of ORA-01502 oracle database index, ora-01502oracle In the current project, when we run the batch, there is an SP always reports the error "ORA-01502: index 'wbill _ 102. PK_A_NOTWEB_ACT_PROVINCE_M 'or partition of such index is in

Install Sybase ASE15.70 in redhat6.4, and redhat6.4ase15.70Preface A new project uses Sybase ASE15.70, a database that has never been used. You can install it first. Installation preparation Operating System To reduce the trouble, try to prepare the

Uncatalog of backuppiece in Oracle Rman and delete of backupset, rmanbackuppiece This article is the original article, reproduced please indicate the source: http://write.blog.csdn.net/postedit/42424083   This article is based on Oracle 10.2.0.4 to

Mysql having and mysqlhavingHaving usage Having clauses allow us to filter various data After grouping. where clauses filter records before aggregation, that is, before group by and having clauses. The having clause filters group records after

MySQL_05-Select query details, mysql_05-select SQL query details 1. Orderby A) Order by field asc | desc B) Allow sorting of multiple fields: first sort by the first field. If not, then sort by the second field. And so on. 2. Limit (Limit the number

In Oracle DB 12.1.0.2, SYS. ALL_CONSTRAINTS and SYS. ALL_CONS_COLUMNS are defined, SYS. ALL_CONSTRAINTS is defined as follows:   CREATE OR REPLACE VIEW ALL_CONSTRAINTS ASselect OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME,