For a good performance, the Hit/Miss ratio should be over 90% and can be found by stored procedure sp_sysmon. Any patch that is presumed not to be necessary for deployment now can be ignored as the final version of this hot fix will be rolled out in the next service pack of the product. Usually 18% of log space is reserved for LCT. Data and log of user databases should also be placed on different devices. Database 'SEC' is now online. “Log Free” = str(100.0 * sum((curunreservedpgs(dbid, lstart,unreservedpgs))* (1 – abs(sign(segmap – 4)))) / sum(size * (1 – abs(sign(segmap – 4)))), 3) + “%”, select dbid, size,name, phyname “physical device”from sysusages, sysdevices where name = ‘xxx’ and vstart between low and high compute sum(size), Select spid,suser_name(suid),hostname,program_name,physical_io,memusage,ipaddr from sysprocesses order by physical_io, Select name,accdate,totcpu,totio  from syslogins order by totcpu, X0002    no user interpretation (header info? During boot-time, by default, Adaptive Server allocates memory based on the value of ‘total logical memory’. Datapages locking, which locks only the data pages, It can acquire a lock for each page that contained one of the required rows. In this article, we have explained how to download and install Sybase IQ Server on Linux. Refresh- Loading data from one database to another irrespective of sever. Evaluate the Patches and verify is the patch is suitable for your current version. There are 3 ways in which we can move tables form one segment to another. Sp_configure- To reconfigure the parameters with new value. number of worker processes = [max parallel degree] X [the number of concurrent connections wanting to runqueries in parallel] X [1.5]. The lower the value specified for the spinlock ratio, the higher the number of spinlocks. New Sybase Dba jobs added daily. Execute dbcc SQL TEXT (spid) : to view the details of the transaction. The following examples show the RUN_servername file edited to start an Adaptive Server named TEST in single-user modeOn UNIX-, #  errorlog: /usr/u/sybase/install/errorlog, /usr/u/sybase/bin/dataserver -d/work/master.dat. Total 4 levels (. Deploy the required patches in the test environment. Or else wait till the operation is completed. There is one outbound queue for each of these destinations: For each replicate database managed by a Replication Server, there is a Data Server Interface (DSI) outbound queue. To view server status in Unix- showserver, & ps-esf |grep Sybase. Tutorial: Granting roles and privileges (Sybase Central) In the role-based security model, users must have certain privileges or roles to run specific database operations. Advanced techniques for database administration. select  “Database,” = convert(char(20),db_name(dbid))+’,’. Also check for any active Sybase process ps –eaf |grep Sybase. iv. Like Sybase, Microsoft SQL server etc, with some change in SQL syntax.Install or Upgrade Spotlight on Sybase ASE. Performance related tasks (automate Update statistics & sp_recompile in crontab). A create nonclustered index command also acquires a shared table lock. Replicate (target) Dataserver – It is the server in which the final replication server (in the queue) will repeat the transaction done on the primary. Database Tutorials MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, DB2, Sybase, Teradata, Big Data, NOSQL, MongoDB, Couchbase, Cassandra, Windows, Linux Partition statistics on the allocation pages are correct. The number of spinlocks allocated by Adaptive Server depends on the total number of resources as well as on the ratio specified. To unblock process A, all the sub processes till Nth process should be killed or terminated. Stored procedure to get the segment usage report, SQL to find the database and the related devices. The patch ZIP file contains a file called README.TXT. Workable tables- System creates this kind of tables like for sorting purpose. This tutorial shows you how to mobilize a SQL Anywhere database by using MobiLink. The leaf nodes contain pointers that map to the actual data. Run reorg  forward_row/reorg rebuild  (select “reorg rebuild” +name+char(10)+”go” from sysobjects where type=’U’ and  lockscheme(name) not it (‘allpages’). Show Plan- tells you the final decisions that the optimizer makes about your queries. The amount of memory to be allocated by Adaptive Server during boot-time is determined by either ‘total logical memory’ or ‘max memory’. Start a SQL Anywhere database server and display the database server messages window to view information about the database server. The PID for the current running transaction can be identified from table SYSLOGSHOLD. Recovery- Getting the database to the current state of data from a previously maintained backup. It lays the long-term foundation for strategic agility and continuing innovation in mission-critical env, low total cost of ownership and superior performance. Rep Server is configured by using command. About DBA Sybase. Wait- it’s a clean shut down which checks and ensures that all transactions are closed. All indexes still point to the original row ID. go Database consistency checker (dbcc) checks the logical and physical consistency of a database and provides statistics, planning, and repair functionality. Sybase Replication Agent is the Sybase solution for replicating table data changing operations and stored procedure invocations against a primary database. Datarows locking, which locks only the data rows, It can acquire a lock on each row. If this value too high: Adaptive Server may not start, if the physical resources on your machine does is not sufficient. To add the database as a tempdb- Sp_tempdb add, , ‘default’. Load 250+ Sybase Interview Questions and Answers, Question1: How do I tell which tables have identities in Sybase? Tables are sysusers, sysalternates, sysprotects. Sybase - 12.5/15.x (6 years) - Senior Sybase DBA Oracle 10g/11g Detail knowledge of Sybase ASE v15.X, 12.x, Detailed knowledge of Sybase Replication Server Experienced in administration of a Sybase database/Repserver production enterprise database environment Strong Performance and Tuning capabilities Troubleshooting problems real-time issues 1. Sybase was acquired by SAP in 2010; SAP ceased using the Sybase name in 2014. Adaptive Server has two levels of locking: For tables that use allpages locking or datapages locking, either page locks or table locks. Data rows on each page have entries in the row-offset table; these entries match the locations for the data rows on the page. Step1: Prerequisites to perform Database Refresh: 1. In this tutorial, you are a database administrator with full administrative capabilities. Thresholds monitor the free space in a database and alert the DBA to take appropriate action to prevent the max usage of the database segments coz if neglected the server will hang and is users cannot access. Verify the Refresh completed or not Optdiag can display statistics for all tables in a database, or for a single table. Steps to install Sybase IQ Server on Linux: 1. sybase-powerbuilder-6-5-s-tutorials 1/3 Downloaded from womenindigitalenterprise.org on December 27, 2020 by guest [PDF] Sybase Powerbuilder 6 5 S Tutorials This is likewise one of the factors by obtaining the soft documents of SAP acquired Sybase in 2010 to drive forward the realization of its in-memory computing vision. 1> create database SEC on SEC_data_001='100M' log on SEC_log_001='50M' 2> go. Target database size should same or greater than the source database size. ASE is a high-performance, it has been dramatically enhanced to deliver capabilities urgently needed by enterprises today. The data cache contains pages from recently accessed objects, typically: sysobjects, sysindexes, and other system tables for each database, The higher levels and parts of the lower levels of frequently used indexes. Need to update DBA technical knowledge or need to prepare for a job interview? Bcp test.dbo.sysusers in -Ulogin –Sserver –Ddatabase. Apply to Database Administrator, Senior Database Administrator, DBA and more! Execute dbcc TRACEON (3604): Turning on the trace flag will display the trace output on console rather than the error log. Multiple servers can be connected in two ways- Hierarchal and Star. For an overview of Sybase Central and Interactive SQL, see Design and management tools. When replication is active, one connection per each replicated database in the source dataserver (sp_who). Your email address will not be published. 2. Allpages locking, which locks datapages and index pages ,It can acquire just one table-level lock. 05/11/2020 There is a huge number of databases available. If the database you add contains primary data, or if request stored procedures are to be executed in the database for asynchronous delivery, Replication Server creates an inbound queue and prepares to accept messages from a Replication Agent for the database. Run standard upgrade scripts like installmaster,installmsgs,installmontables from $SYBASE/ASE_125/scripts, Change the $SYBASE variable in .profile to point to new EBF directory and source it, Copy the run server file into the new location ( if required since most of the clients keep the run server file in $SYBASE/ASE/install ). ASE 15 meets the increasing demands of large databases and high transaction volumes, SYBASE DBA Sybase DBA Manual Sybase DBA 11/10/2010 It is a humble attempt from our end to welcome the readers into the intriguing and amazing world of SYBASE. All of these patches / hot fixes are bundled in a package and released with the list of bugs fixed or enhancements of the product. This module provides ways to generate and modify databases using a graphical representation of the database structure. This tutorial shows you how to migrate a Sybase database to Oracle Database 11g using Oracle SQL Developer. Data and Log of tempdb should be placed on different devices. We can only modify the stored procedure. Data is stored in physical order (asc/desc). Get Personalised Job Recommendations Registering gives you the benefit to browse & apply The data in database is stored in the form of tables. Backup and SCP go, Exit from isql the console run the below commands from linex shell, 4. How to use this book This book can assist you to configure and use the Sybase SQL Expert. Verification, Source Database Servername: LOCALHOST(Sybase server name) Each user on UNIX level has own crontab and one should have the privilege to add/modify the crontab. Leverage your professional network, and get hired. How Many Databases Can You Name? If server config value has reached the max threshold limit for ‘number of open databases’, ‘number of open objects’, ‘number of open indexes’, ‘number of user connections’ & ‘number of locks’.Please followthe steps below. Outmost care has been taken to ensure that it is easily grasped even by the novices. Adaptive Server supports locking at the table, page, and row level. In this step we will perform following steps on target database server. As users execute stored procedures, Adaptive Server looks in the procedure cache for a query plan to use. Optdiag output contains addition information useful for understanding query costs, such as index height and the average row length. Drive faster, more reliable online transaction processing (OLTP) for less with SAP Adaptive Server Enterprise. No updates to Syslocks are allowed. If you find any error in DBCC output fix the issue before rolling out the new patch. ii. Any exceptions encountered during the process are recorded into. Nowait- It’s a don’t care shut down, which kill all the transactions forcefully. SYSUSERS holds the details which allow people to access the Databases level. CREATE DATABASE: allocating 25600 logical pages (100.0 megabytes) on disk 'SEC_data_001' (25600 logical pages requested). For every Replication Server to which a Replication Server has a route, there is a Replication Server Interface (RSI) outbound queue. Disk default option for system database has to be turned off. Once the PID is identified, the user details can be found from the table SYSPROCESSES. For example, Adaptive Server applies an exclusive table lock during. SYbase DBASybase DBA Manual Sybase DBA11/10/2010 It is a humble attempt from our end to welcome the readers into the intriguing and amazing world of SYBASE. Load database with source(production) database dump(s). Statement Cache- The statement cache allows Adaptive Server to store the text of ad hoc SQL statements. Drive faster, more reliable online transaction processing (OLTP) for less with SAP Adaptive Server Enterprise. Delete three tables from target database. Large number of shared memory segments has the disadvantage of some performance degradation on certain platforms. The total memory allocated during boot-time is the sum of memory required for all the configuration needs of Adaptive Server. Question2: Explain about the Sybase group? Oracle SQL Developer is a free graphical tool that enhances productivity and simplifies database development tasks. For Windows installations, double click on setup.exe from the explorer in the temporary directory. With its latest version, manipulating and sharing databases among various users. There can be multiple rep definitions for a single table. Primary Dataserver – It is the source of data where client applications enter/delete and modify data. To start the ASE execute startserver –f RUN_. Replication Agent/Log Transfer Manager- Log Transfer Manager (LTM) is a separate program/process which reads transaction log from the source server and transfers them to the replication server for further processing. For manually clearing shared segments- ipcrm –s/m and verify the values with .krg file and once you clear the memory then delete the .krg file. If resource limits are enabled, it also displays the total actual I/O cost. if the port is opened you will see a blank screen in command prompt…. It is also a common database backend for Java Web applications. ( Log Out /  sp_configure "allow updates to system tables",1 This is the reason why it takes more time for nonclustered index data. SAP Sybase SQL Anywhere 16.0 » SQL Anywhere Server - Database Administration » User and database security » User security (roles and privileges) » Tutorial: Granting roles and privileges (Sybase Central) It can help you debug queries and decide whether to use certain options, like specifying an index or a join order for a particular query. 3. The size of a page can be 2KB, 4KB, or 16KB. SQL Anywhere Studio includes PowerDesigner Physical Architect, a module of Sybase's powerful database design tool, PowerDesigner. In this way, Adaptive Server does not have to recompile SQL statements for which it already has a plan.This allows the application to amortize the costs of query compilation across several executions of the same statement.The statement cache memory is taken from the procedure cache memory pool. User level- Free chance Threshold. Verify the Load operation. Apply To 6522 Sybase Dba Jobs On Naukri.com, India's No.1 Job Portal. bcp r2dev..sysprotects out /opt/sybase/dump/sysprotects_01_01_2019 -Usa -SDEV01 [email protected] -c -Y, bcp64 r2dev..sysusers out /opt/sybase/dump/sysusers_01_01_2019 -Usa -SDEV01 [email protected] -c -Y Optdiag is frequently used for other tuning tasks, so you should have these reports on hand. All indexes and data partitions are correctly linked. When connecting to the server with isql, it goes to the file (sql.ini for Windows/interface.ini for Solaris), and finds the path for the server. The number of entries per OAM page also depends on the logical page size the server is using. To know server version details- select @@version OR records in error log OR dataserver –v. User defined- A max of 32 segments can be created in a database including the 3 system segments. 1. bcp out of tables: sysusers, sysalternates and sysprotects. Source Database name: r2schools, Tartget Database Servername: DEV01(Sybase server name) 4. Create a temporary directory, and unzip the patch file into this directory. Error log is stored externally. It sets up synchronization between a SQL Anywhere consolidated database and an UltraLite remote database. ( Log Out /  Procedure cache size= (max number of concurrent users)*(4+size of largest plan)*1.25. CREATE DATABASE: allocating 12800 logical pages (50.0 megabytes) on disk 'SEC_log_001' (12800 logical pages requested). Apply to Senior Database Administrator, Senior Programmer Analyst, Information Technology Manager and more! Memory Jam- It occurs due to the non de-allocation of the shared segments in the shared memory. Target database size should same or greater than the source database size. The server part receives transactions being sent by either the source ASE or the source LTM. If everything is found where expected, it’s called a HIT. Locking is a concurrency control mechanism: it ensures the consistency of data within and across transactions. 1. Job scheduling at UNIX level is done in crontab. In version 12.5.3 a max of 3.7 GB can be allocated to the ASE server. 3. Sybase Tutorial: Sybase Database refresh step by step - Duration: 17:04. r2schools 1,320 views. A pointer to the row ID on the new page is stored in the original location for the row. Shared lock-This lock is similar to a shared page or lock, except that it affects the entire table. To bind the tempdb – sp_tempdb ‘bind’, ‘lg’, ’’, ’db’. Total 3 levels (, Nonclustered Indexes- There can be as many as 249 non clustered indexes for a table. Use –P option in run server file to generate the password for the SA which prints the new SA password in the errorlog, for this we need to reboot the ASE server. Index and data pages are linked correctly. 4/7/2016 SQL Tutorial 2/3 W3Schools' Online Certification Oracle dba Explore Sybase Dba Openings In Your Desired Locations Now! Sybase Central Adaptive Server Plug-in Running Adaptive Server on VMware vSphere Support for OData Support for NTLM and MIT Kerberos on Windows 64-bit Properties Added to … lstart,unreservedpgs)) * abs(sign(segmap – 4))) / sum(size * abs(sign(segmap- 4))), 3) + “%”+’,’. Security Management (adding logins/users with proper approvals from application/technical leads). Classify them into required and not required. unlock all the users and handover the server to apps team. The process that is blocked by the lock sleeps until the lock is released. For DOS installations set the temporary directory as your current directory and run setup.exe in that directory. Change ), as well as enhanced support for unstructured data management. Config parameter defines the server wide settings and is divided in to, All the static configured parameters values are stored in table. The time to reach from PDS to RS is known as latency. “Log Used,” = str(sum((size – curunreservedpgs(dbid, lstart, unreservedpgs))* (1 – abs(sign(segmap – 4)))) / 512.0, 7, 2)+’,’. IP: 192.168.152.135 All processes trying to access the resource must wait (or “spin”) until the lock is released.If 100 are specified for the spinlock ratio, Adaptive Server allocates one spinlock for each 100 resources. This need not be ASE; it can be Microsoft SQL Server, Oracle, DB2, and Informix. Adaptive Server protects the tables, data pages, or data rows currently used by active transactions by locking them. Scribd is the world's largest social reading and publishing site. The total memory required value can be obtained from the read-only configuration parameter ‘total logical memory’. I've been working with several databases, starting with Access, Oracle, Firebird, some with MySQL, Sybase and MS SQL Server. Prerequisites. The client part sends these transactions to the target server which could be another replication server or the final dataserver. Lock all the users on the data server as we need to perform some post install steps. However, you still need to use an LTM for non-ASE sources. bcp64 r2dev..sysprotects out /opt/sybase/dump/sysprotects_01_01_2019 -Usa -SDEV01 [email protected] -c -Y. 7. Restore- Taking the database to a previous state. All the information regarding databases created in single adaptive server can be viewed in system table SYSDATABASES and the database space usage in SYSUSAGES. Dbcc trace on (3604, 302) – makes you understand why and how the optimizer makes choices. Download the Sybase IQ Server from this link Download Sybase IQ … Run basic DBCC checks to make sure the all the databases are in good condition. This is called lock contention. SAP ASE DBA Course – Join Now SAP ASE DBA-Introduction to Adaptive Server Enterprise – Watch Video Recording of Lecture. Exclusive lock-This lock is similar to an exclusive page or row lock, except it affects the entire table. Sybase, Inc. was an enterprise software and services company that produced software to manage and analyze information in relational databases, with facilities located in California and Massachusetts. .krg file will be automatically deleted when ASE server goes offline. User databases can only be created by the system administrator or whoever has the system administrator privileges.A max of 256 Databases can be created on single adaptive server. Steps to install Sybase IQ Server on Linux: 1. Below are mentioned the possible states of a process. Make sure to drop the database before dropping any device. IntroductionSAP Sybase ASE is a highly optimized relational database management system for mission critical transactional processing and operational reporting. Restore the most recent transaction log which was dumped with no_truncate option. If a query plan is available, it is placed on the MRU end of the chain, and execution begins. Overview. Data Server Interface- It connects RDS and Rep Server. Use – m to start the server in single user mode. Statistics must be updated periodically, and also exec sp_recompile. If you are looking for learning Oracle Database from scratch, you are at the right place. Size of Log disk= 10 % of the data disk of the particular device. Parser checks for the syntactical errors, compiler checks for the query plan in data cache ( if not found gets backs from database), execute checks for the result in the data cache ( if not found gets back from the database). Sybase SQL Anywhere is a powerful database server suitable for enterprise applications. 17:04. We can create login using command create login or stored procedure sp_addlogin. Shut down of a server can be in two modes. If a Sybase instance is defined with a page size smaller than 8K, the WebLogic Portal tables will be created but warning messages might occur at creation time, indicating that … To reconfigure the access parameters to system tables –. In this article, we are going to see step by step procedure of Sybase database refresh. sp_addlogin is deprecated in 15.7 or later versions. Any number of databases can use a disk as long as they are in the same server, restricting to a single file system. Before deleting the segments we should ensure that the objects associated to that segment are dropped. Groups provide a convenient way to grant and revoke permissions to more than one user in a single statement. Indexes are preferred when the total requested records are less than or equal to 5% of total table rows. Change ), You are commenting using your Google account. sybase training for managing,analyzing&monitoring information using relational databases.Best sybase DBA online&corporate training from India by SME trainer Introduction of Sybase Training: Sybase Training is an enterprise software and services company offering software to managing, analyzing and monitoring information using relational databases. waiting on an alarm, such as wait for delay “10:00”, Waiting disk I/O, or some other resource. Locking affects performance when one process holds locks that prevent another process from accessing needed data. Sybase Tutorial - OnlineTrainingIO. Change ), You are commenting using your Facebook account. “Data Size,” = str(sum(size * abs(sign(segmap – 4))) / 512.0, 7, 2)+’,’. Welcome to the Oracle Tutorial website! Check for sp_configure ‘enable cis’ and set to 1. ), 81          first part of IP address (129 decimal), 96          second part of IP address (150 decimal), c4          third part of IP address (196 decimal), 51          fourth part of IP address (81 decimal), Secondary Transaction Point found in rs_loacter. An interface file contains network information about all servers on your network, including Adaptive Server, Backup Server, and XP Server, plus any other server applications such as Monitor Server, Replication Server, and any other Open Server applications. Load the Master DB from previous backup. Spinlock ratio- A spinlock is a simple locking mechanism that prevents a process from accessing the system resource currently used by another process. About this chapter . Disk initialization is the process of allocating disk space to server. Copy above dump file to target server by using scp: scp -p r2schools_01_01_2019.dmp [email protected]:/opt/sybase/dump/. SolarisUnix or any environment, allocates shared memory for the ASE server. Prerequisites This lesson assumes that you have the roles and privileges listed in the Privileges section at the start of this tutorial: Tutorial: Connecting to the sample database . ( Log Out /  Initialize data and log devices separately, Delete from sysusages where dbid=2 and segmap=. Database is collection of data objects (Tables, Views, Stored Procedures, Functions, Triggers and indexes). Bcp test.dbo.sysprotects out -Ulogin –Sserver –Ddatabase. […] This queue stores a valid transactional “snapshot” from the primary database during subscription materialization or from a replicate database during dematerialization. 2. In this video, we are going to install Sybase IQ Server in console mode. Sp_countmetadata- Gives information about the total number of objects like tables, sp’s, views, triggers, etc. bcp64 r2dev..sysalternates out /opt/sybase/dump/sysalternates_01_01_2019 -Usa -SDEV01 [email protected] -c -Y Bring database online PITR can be done only if a valid full dump of database, transaction log dumps and the dump of current transaction log (dump tran to ‘’ with no_truncate, this option will allow to perform the backup if database device fails.). delete r2dev..sysprotects Explore Sybase Dba Openings In Your Desired Locations Now! In return all the OAM point to the AP of the entire allocation unit where object data is stored. Stable Queue Manager manages all these operations related to Stable Device. Data cache should be configured such that hit/miss ratio should be greater than 90. These error messages can be found in the table sysmessages. Dbcc trace on (3604, 310) – gives per table I/O estimates. When a query is fired, it is passed to parser, next to complier and then executed till the result is fetched back to the user. In this article, we have explained how to download and install Sybase IQ Server on Linux. Size of the tempdb = 20% of sum up of all the user databases. There are four levels of isolation which ASE has, of which level 0 is default. Initialize Disk Devices- Based on size create data and log devices. Outbound Queue- holds messages for a replicate database or a replicate Replication Server. Dbcc trace on (3604, 317) – gives report about all the plans. During the phases of execution, the single process can change to various states depending on the availability of the i/o, query plan, data, etc. It reads data from Outbound Queue and replicates to RDS according to the subscriptions. delete r2dev..sysalternates go, delete r2dev..sysusers Add ’loopback’ server name alias in master – sp_addserver loopback, null, @@servername, Install MDA tables – isql -U sa -P -S –i ~/scripts/installmontables, Assign ‘Mon_role’ to logins allowed MDA access- grant role Mon_role to sa, To test for basic configuration – select * from master..monstate, Assign several configuration parameters like. 8 contiguous pages is an Extent. Later we have to match the .krg file with the details available on the shared segment allocated to the server. Memory is consumed by various configuration parameters, statement cache, procedure cache and data caches. When a process A is blocked by another process B, and B blocked by C, and continued in similar fashion till N number of processes, these all are blocked by the nth process. SYSLOGIN holds the details which allow people to access the Server level. The below diagrams clearly explain the steps involved during HIT or  MISS. Device that can be connected to a server was up to 256 till version 12.5, later got unlimited from version 15. Replication Server (s) – The replication server is an Open Server/Open Client application. SSH Keys must be enabled. If the procedure cache is too small, a user trying to execute stored procedures or queries that fire triggers receives an error message and must resubmit the query. sp_deviceattr device_name, ‘dsync/directio’, {true, false}. SQL Anywhere 12.0.1 » SQL Anywhere Server - Database Administration » Starting and connecting to your database » Tutorial: Connecting to the sample database . Sybase DBA User Guide for Beginners - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. bcp r2dev..sysalternates out /opt/sybase/dump/sysalternates_01_01_2019 -Usa -SDEV01 [email protected] -c -Y Load the database with source database server(production) dumps. All lookup tables should be placed on a separate segment. To change the default settings for the database we use database options. We provide the SQL Server DBA online training also for all students around the world through the Gangboard medium. Sybase management, tutorials, scripts, coding, programming and tips for database administrators Sybase Rss Feed. The course covers must-know monitoring and troubleshooting methods, as well as important technical information to increase the efficiency of the Sybase IQ DBA. All the server level events and severity level >16 will be recorded in the error log. Size of DBCC database- can be found out from sp_plan_dbccdb.

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