Used to enable or disable Oracle BI Server subrequest cache hits and seeding. The SKIN variable points to an Oracle BI Presentation Services folder that contains the nonalterable elements, for example, figures such as GIF files. In the [Repository|Session] Variable Initialization Block dialog, type a name for the block. This SQL statement contains two constraints in the WHERE clause: ':USER' (note the colon and the single quotes) is the ID the user types when logging in. repository. It is often convenient to set a number of session variables to capture date values that you use repeatedly in your queries. About Using Initialization Blocks with Variables, Associating Variables with Initialization Blocks, When Execution of Session Variable Initialization Blocks Cannot Be Deferred, Enabling and Disabling Initialization Blocks. If you do not want this to occur, use the Undo Check Out option. Since you are going to be setting these date variables using physical SQL in initialization blocks, the SQL issued will be specific to the database platform you are using. Table 19-2 Sample Session Variables Database Table. Contains the global unique identifier (GUID) of the user, typically populated from the LDAP profile of the user. GUIDs for application roles are the same as the application role names. This logical WHERE clause expands into a physical IN clause, as shown in the following statement: See "About Using Initialization Blocks with Variables" for more information about initialization blocks. System session variables have reserved names that cannot be used for other kinds of variables (such as static or dynamic repository variables and nonsystem session variables). How to get the closed form solution from DSolve[]? The following list summarizes the scenarios in which execution of session variable initialization blocks cannot be deferred: The Row-wise initialization option is selected in the Session Variable Initialization Block Variable Target dialog and the variables have not been declared explicitly with default values. It's meant to be a constant value. Rather than entering the numbers 17 and 23 into this expression as constants, you could use the Variable tab of the Variable dialog to set up a static repository variable named prime_begin and initialize it to a value of 17, and create another variable named prime_end and initialize it to a value of 23. You can use a variable to specify the names of catalog and schema objects. In the Set value for the variables dialog, verify the information is correct, and then click OK. [nQSError: 23006] The session variable, NQ_SESSION.MyYear, has no value definition. "store number" = VALUEOF(NQ_SESSION. In this case, the trusted internal process can connect regardless of whether the initialization block succeeds or fails. Time Data Type This saves the resources which would have been used to execute these unnecessary initialization blocks. A repository variable has a single value at any point in time. This option is for session variable initialization blocks only. Legacy groups are mapped to application roles automatically. It identifies the default dashboard the user sees when logging in (the user can override this preference after logged on). When you have create a server variable, you have to reference it. For example, you could define a nonsystem variable called SalesRegion that would be initialized to the name of the sales region of the user. Used to enable or disable Oracle BI Server plan cache seeding. It is also saved as the author field for catalog objects. See "Creating Initialization Blocks" for more information. OBIEE 11g - The session variable, NQ_SESSION.VARIABLE, has no value definition user11173172 Feb 20 2015 edited Feb 27 2015 Hello, I am seeing a strange issue when using SESSION variable in OBIEE 11g RPD for data level security. Don't forget the quotes which enclose the Variable Name. Does Cosmic Background radiation transmit heat? However, if you select Use OBI EE Server, the query is rewritten by the Oracle BI Server for the appropriate database. If you use a SQL tool, be sure to use the same DSN or one set up identically to the DSN in the specified connection pool. Security When a repository has multiple initialization blocks, you can set the order (establish the precedence) in which the blocks will be initialized. Note: The Allow deferred execution option is unavailable in some circumstances. Required for authentication. In the Identity Manager dialog, in the tree pane, select BI Repository. When you use these variables for Oracle BI Presentation Services, preface their names with NQ_SESSION. Note that this requirement is waived for internal processes (like Delivers) that use impersonation, if a single user session variable has been associated with the initialization block. In the logical table source TIMES Fact from the logical fact table Times, let's fill in the where clause with the repository session variable. For example, the format of a date report variable can vary, depending on whether the user has changed the default value set by a dashboard calendar prompt. Statistics Http variables is plural. This can reduce session startup time. See "When Execution of Session Variable Initialization Blocks Cannot Be Deferred" for more information. For example, if a folder were called sk_companyx, the SKIN variable would be set to companyx. When the user modifies the date range using the first calendar, the format of the first date changes. Story Identification: Nanomachines Building Cities, Ackermann Function without Recursion or Stack. This variable has a possible value of 0 or 1. Contains the locale of the user, typically populated from the LDAP profile of the user. Mathematics Each query can refresh several variables: one variable for each column in the query. Quick question, a colleague of mine was telling me that the session variable, NQ_SESSION.GROUP, only shows groups which are assigned at the presentation >> level (or passed in from LDAP or other data source) but it does not show any of the group assignments made within the RPD itself. The Oracle BI Server substitutes the value of the repository variable for the variable itself in the metadata. (HY000) SQL Issued: SET VARIABLE MYYEAR='1998';SELECT TIMES_VIEW.calendar_year saw_0 FROM Test ORDER BY saw_0 Try to use the same letter case for the name of the variable (upper and lower). If you want the query for an initialization block to have database-specific SQL, you can select a database type for that query. If you order a special airline meal (e.g. Number Contains the global unique identifiers (GUIDs) for the application roles to which the user belongs. Example message: "The execution of init block 'A_blk' cannot be deferred as it is used by session variable 'PROXY'.". In previous releases, the Administration Tool did not limit the values of default initializers for static repository variables. For Example the report looks like this Region VALUEOF (REGION) SALES North Some value from North Variable 100 The user can alter some elements of the user interface by picking a style when logged on to Oracle BI Presentation Services. Url "ABC") but error message "The session variable, NQ_SESSION.ABC, has no value definition." In the right pane, select the Application Roles tab, then double-click the application role for which you want to set data filters. This section contains the following initialization string examples: Example 19-1, "A SQL Statement When Site Uses Delivers", Example 19-2, "A SQL Statement When Site Does Not Use Delivers", Example 19-3, "A SQL Statement Joining Tables From Multiple Data Sources - When Using the 'OBI EE Server' Setting", Example 19-1 A SQL Statement When Site Uses Delivers. While the main focus of this section is on the definition and usage of multi-source session variables, you may also select the VALUEOF the component session variables in logical queries and data filters. COLUMN1 is having values VARIABLE1 , VARIABLE2 etc . This section provides information about working with session variables, and contains the following topics: Session variables obtain their values from initialization blocks. Data Partition If the administrator user (defined upon install) has a Logging level defined as 4 and the session variable LOGLEVEL defined in the repository has a value of 0 (zero), the value of 0 applies. Log, Measure Levels Linear Algebra It is often convenient to set a number of session variables to capture date values that you use repeatedly in your queries. Choose Enable or Disable from the right-click menu. The variables receive their values from the initialization string that you type in the Initialization Block dialog. Using the convention that weeks begin on Sunday (adjust accordingly if thats not the case for your enterprise), we can think of Current, Previous, and Next weeks. Data Concurrency, Data Science Compiler Otherwise, the default initialization SQL for the database type is used. This chapter contains the following topics: Working with Multi-Source Session Variables. In the Data Filters tab, create the data filter expression: Note that the Expression Builder, as shown in the image that follows, displays only the multi-source session variable MVCOUNTRY, and not the regular session variables that were used during the creation of the multi-source session variable. See Creating Initialization Blocks for more information. Distance Create a row-wise initialization block called mvcountry_sebl_init with the following SQL for Default initialization string: Create a second row-wise initialization block called mvcountry_orcl_init with the following SQL for Default initialization string: Still in the Variable Manager, select Action > New > Session > Variable. Then, you explicitly define session variables for each source. Automata, Data Type Design Pattern, Infrastructure The following session variables would be created: When John connects to the Oracle BI Server, his session contains two session variables from row-wise initialization: LEVEL, containing the value 4, and STATUS, containing the value FULL_TIME. To create a multi-source session variable, you first create row-wise initialization blocks for each source. For example, you could define a nonsystem variable called SalesRegion that would be initialized to the name of the sales region of the user. I am confused on how to use the non-system session variable in Answers, says, in column formula, in a filter and in title view. Contains the application roles to which the user belongs. The Results dialog lists the variables and their values. This system session variable overrides a variable defined in the Users object in the Administration Tool. The obiee logical sql request doesn't contain any filter : The logical request doesn't contain any filter : But the final query, send in the database, contains one. When a user belongs to multiple Catalog groups, include the Catalog group names in the same column, separated by semicolons (for example, WebgroupA;WebgroupB;WebgroupC). The SQL SELECT statement in the Default initializer list can contain multiple columns. If the administrator user (defined upon install) has a Logging level defined as 4 and the session variable LOGLEVEL defined in the repository has a value of 0 (zero), the value of 0 applies. This article show you with the help of the sh schema a little example. OBIEE offer several variables which can be set : variables from the OBIEE Server known as session and repository variables. Without using dynamic repository variables, you would describe the content of the source containing recent data with an expression such as: This content statement becomes invalid as new data is added to the recent source and older data is moved to the historical source. (Repository initialization blocks only) In the Schedule area, select a start date and time and the refresh interval. SELECT 'VALUEOF(NQ_SESSION.WEBLANGUAGE)' FROM DUAL I have set up a session variable initialization block to read in the variable names and values from my translated strings table with this SQL: select session_variable,translation from W_LOCALIZED_STRING_G where lang_id='VALUEOF(NQ_SESSION.LOCALE)' The names of system session variables are reserved and cannot be used for other types of variables. You need to describe the content of these sources on the Content tab of the Logical Table Source dialog. Graph For example, I have declared and initialised 3 server variables: All 3 contain a value after logging on, I verified this in the obiee admin tool 'manage sessions' screen. Order Data Persistence Collection Process OAuth, Contact Spatial See "About Using Initialization Blocks with Variables" for more information. Select a discussion category from the picklist. When you check in the initialization block, the value of the dynamic variables is reset to the values shown in the Default initializer. This chapter describes how to use variables in the Oracle BI repository to streamline administrative tasks and dynamically modify metadata content to adjust to a changing data environment. You do not need to set up the PASSWORD variable, and you can use this variable in a database connection pool to allow passthrough login using the user ID and password of the user. Cryptography Database: For repository and session variables. Session variables are created and assigned a value when each user logs on. If a user is authenticated successfully, session variables can be used to set filters and permissions for that session. See <> for more information. In RPD, I created a new init block with session variable PRODUCT and row wise initialization is set. With the version 10.1.3.4, a warning is generated: But BI Server process it without problem. Dynamic repository values can be set up to do it automatically. There are two types of session variables: system and nonsystem. 2. I have defined non-system session variable, says ABC in RPD, and would like to use it in Answers. rev2023.3.1.43269. Used to enable or disable Oracle BI Server plan cache hits. vegan) just to try it, does this inconvenience the caterers and staff? Process (Thread) See "Examples of Initialization Strings" for examples. Dynamic repository variables are useful for defining the content of logical table sources. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. You should test this SQL using the Test button in the [Repository|Session] Variable Initialization Block Data Source dialog. Select Use OBI EE Server, and then perform the following steps: In the box, enter the SQL initialization string needed to populate the variables. You can also use the row-wise initialization option to initialize a variable with a list of values. See "Setting Administration Tool Options" for more information. If you do not select a connection pool before typing the initialization string, you receive a message prompting you to select the connection pool. However, it will still work with other data sources because the SQL statement is processed by the Oracle BI Server. Truce of the burning tree -- how realistic? For example, the NQ_SYSTEM initialization block is used to refresh system session variables. When you use these variables for Oracle BI Server, preface their names with NQ_SESSION. Find centralized, trusted content and collaborate around the technologies you use most. You can then use the SQL IN operator to test for values in a specified list. Instead, the Oracle BI Server creates new instances of those variables whenever a user begins a new session. If the SQL statement contains an error, the database returns an error message. StartDate)', 1, 3) = '200' or substr('valueof(NQ_SESSION. Contains a description of the user, typically populated from the LDAP profile of the user. To enable or disable an initialization block: In the Administration Tool, select Manage, then select Variables. When the user logs in to act as some other user, the value of the USER session variable matches the USERID the user is acting as. Initialization blocks are used to initialize dynamic repository variables, system session variables, and nonsystem session variables. See "About Row-Wise Initialization" for more information. An error will generate if a session variable is used in the opaque view. Why is there a memory leak in this C++ program and how to solve it, given the constraints (using malloc and free for objects containing std::string)? Data Persistence You can't use SQL to set your default initializer, that's why you only see Constants as an option. This variable has a possible value of 0 or 1. If you are using a calendar thats different from the normal Gregorian calendar (i.e. The user can alter some elements of the user interface by picking a style when logged on to Oracle BI Presentation Services. Making statements based on opinion; back them up with references or personal experience. variables is good where variable is bad. Custom Authenticator: For session variables. It is also saved as the author field for catalog objects. The tables do not have to be included in the Physical layer of the metadata. You use the same procedure to define nonsystem session variables as for system session variables. COMPANYID is the name of a physical column. Operating System Names for all variables should be unique. Business Intelligence Server Enterprise Edition - Version 12.2.1.0.0 to 12.2.1.4.200414 [Release 12g]: OBIEE 12c - case sensitivity of USER session variable name OBIEE 12c - case sensitivity of . Relation (Table) In the right pane, right-click the initialization block you want to enable or disable. The multi-source session variable will fail only if all of the component initialization blocks return null values. If this option is not selected, then the variable cannot be set. By using OBIEE variables and a custom control table in Snowflake, we can achieve the same functionality without having to continuously make metadata updates or worry about the number of connection pools becoming a maintenance nightmare. To view full details, sign in to My Oracle Support Community. Used for Oracle BI Presentation Services. Select this option to set session variables after the initialization block has populated the value (at user login) by calling the ODBC stored procedure NQSSetSessionValue(). Compiler In the following example, the session variable RETAILERID has been assigned a numeric value. Logical Data Modeling This variable has a possible value of 0 or 1. Relation (Table) For session variables, you can select the following options: Initialization Strings Used in Variables to Override Selection Steps. Values can still be added to the multi-source session variable from other component initialization blocks that succeed in returning values. This section explains how to create session variables. Holds the name of the proxy user. Blog, KPI Partners provides strategic guidance and technology systems for clients wishing to solve complex business challenges involving cloud applications and big data.Learn more, Oracle | Tableau | Snowflake | AWS | Azure | ConfluentQlik | MapR | Cloudera | Hortonworks | DataStax | SAPTeradata | NetSuite | Salesforce | Attunity | Denodo |NumerifyView all, KPI Partners, Inc.39899 Balentine Drive, Suite #212, BigQuery to optimize cost and performance, Data Lake Challenges with Databricks Delta Lake, Manual performance optimization in Denodo, Real-Time Supply Chain and Inventory Analytics, Snowflake secure views vs views in Oracle, traditional software development methodology. [emailprotected] WHERE upper (SALESREP) = upper ('valueof (NQ_SESSION.USER)') The third case, dates, is the hardest. Then, in the Browse dialog, select the variable to be refreshed by this initialization block and click OK. For the Custom Authenticator data source type (Session variables only), the variable USER is required. To test initialization blocks (optional): In the Variable Manager dialog, double-click the initialization block. The names and values of the session variables reside in an external database that you access through a connection pool. If the database object has the Virtual Private Database option selected, the Oracle BI Server matches a list of security-sensitive variables to each prospective cache hit. In the Variable Manager dialog, select Action > New > Session > Variable. Used to enable or disable Oracle BI Server result cache hits. The names of system session variables are reserved and cannot be used for other types of variables.