sybase in memory database

SYBASE ASA Database when you encounter an abnormal shutdown, it is easy to have exceptions, such as: Table or index error, the trouble is to use drop table T_name Delete tables when the database will down. Here are my two common ways to recover: Restore with BACKUP database: 1. Start with BACKUP

Tags: http alt str Auxiliary CSDN system white fonts marginThe basic framework of Sybase The Sybase database consists of a system database, a user database, a database device, and a secondary file. 1. System

For large DBMS systems like Sybase, the cornerstone of an OLTP (online transaction processing) application is that it needs to run uninterrupted 365 days a day, 24 hours a year. Because of the large number of inserts, updates, deletes and so on of the database on a daily basis, the storage fragmentation is generated on the physical storage media of the database,

highly efficient to use stored procedures to query local data. • Stored procedures are generally called by the client side through the name of the stored procedure, that is, the network transmission is only the name of the stored procedure and a small number of parameters (if any), rather than constitute a stored procedure of many SQL statements, so you can reduce the amount of traffic, speed up the system response. • Stored procedures also have the convenience characteristic of being called

name; 6,datediff (DATEPART,DATE_EXPR1,DATE_EXPR2): Returns DATE_EXPR2-DATE_EXPR1, through the specified datepart metric; 7,dateadd (DATE-PART,NUM-EXP,DATE-EXP): Returns the Date-exp value generated by the specified Date-part component plus num-exp value; Compatibility: Iqase 8,date-part The date component represents the value: abbreviation Value YY0001-9999QQ1-4MM1- AWK1- WuDD1- toDY1--366Dw1-7(Sunday-Saturday) HH0- atMI0- -SS0- -MS0-999Iv. Conversion Functions1,convert (Datetype,exp[,format-st

Several problems encountered during the configuration of the Sybase library today have not been found for a long time, so they are recorded here. 1. Enable the dump transation log on checkpoint option. use master go dump transaction DATABASENAME,trunc,true go use DATABASENAMEgo checkpoint go 2. Configure bcp in Database options use mastergosp_dboption DATABASENAME,"bulkcopy",true

Sybase website: infocenter.sybase.com/archive/index.jsp?topic=/com.sybase.dc00729_1500/html/errmessageadvres/babdhdff.htmError:ad-hoc updates to system catalogs not enabled. A user with system Security Officer (SSO) role must reconfigure System to allow this .Workaround: 1. Java graphics connected to data 2, right click the connection, select Config,3. In the newly opened interface, select allow updates to systems to table, change 0 to 1,Click OK,

)The above results indicate that the search point is not an index entry, which affects the retrieval speed.If you add an index, the return value should be as follows.QUERY PLAN for STATEMENT 1 (at line 1).STEP 1The type of query is SELECT.From TABLEMark.issuingIssuingNested iteration.Index:idx_biblio_codeForward Scan.Positioning by key.Keys are:Biblio_code ASCUsing I/O Size 2 kbytes for index leaf pages.With LRU Buffer replacement strategy for index leaf pages.Using I/O Size 2 Kbytes for data pa

The basic framework of Sybase The Sybase database consists of a system database, a user database, a database device, and a secondary file. 1. System DatabaseThe Sybase

Many people tend to fall into a misunderstanding when using SQL, that is, they are too concerned about whether the obtained results are correct, while ignoring the possible performance differences between different implementation methods, this performance difference is particularly evident in large or complex database environments (such as online transaction processing OLTP or decision support system DSS. In my work practice, I found that poor SQL sta