Oracle row count example

    • [PDF File]Handling Missing Values in the SQL Procedure

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      Row X1 X2-----1 _ . 2 . . 3 A A 4 -1 . 5 0 . 6 1 1 7 1 1 4. MISSING VALUES AND AGGREGATE FUNCTIONS SQL procedure supports most common aggregate functions, or statistical summary functions such as count, average, sum, min,

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    • [PDF File]Oracle Advanced Compression with Oracle Database 12c

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      The example below, the result of running the advisor code above, shows the type of output that is provided by compression advisor. Block count compressed = 161 Block count uncompressed = 427 Row count per block compressed = 555 Row count per block uncompressed = 209 Compression type = “Compress Advanced” Compression ratio = 2.65

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    • [PDF File]In-Database Map-Reduce - Oracle

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      example: a word count. For those unfamiliar with the example, the goal of word count is to return all distinct words within a set of documents as well as a count of how often this word occurs within this set of documents. The procedural code in this word count example is implemented in PL/SQL but, as said before, Oracle allows you to pick your language of choice to implement said procedural ...

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    • [PDF File]Oracle® to BigQuery SQL translation reference

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      For example, the following ... EXISTS Condition is met if subquery returns at least one row The operators in the table are the same both in BigQuery and Oracle. 7 Logical expressions and functions Oracle BigQuery CASE CASE COALESCE COALESCE (expr1, ..., exprN) DECODE CASE.. WHEN.. END NANVL IFNULL FETCH NEXT LIMIT NULLIF NULLIF (expression, expression_to_match) NVL …

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    • [PDF File]Key Functions in Oracle SQL

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      Example: • COUNT(*) • COUNT(DISTINCT univ_id_no) MAX(expression) Returns the largest value from a set of rows Note: See the GREATEST function if you want the largest of a series of values in a single row. Example (returns the date on which the most recent change was made to dwfnd_rf_tub_cds): • MAX(tub_last_update_dt) (continued on next page) Key Functions in Oracle SQL Page 2 of 6 4 - 2 ...

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    • [PDF File]Triggers and Active Databases

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      Before Trigger Example (row granularity) CREATE TRIGGER Max_EnrollCheck BEFORE INSERT ON Transcript REFERENCING NEW AS N --row to be added FOR EACH ROW WHEN ((SELECT COUNT (T.StudId) FROM Transcript T WHERE T.CrsCode = N.CrsCode AND T.Semester = N.Semester) >= (SELECT C.MaxEnroll FROM Course C WHERE C.CrsCode = N.CrsCode )) ROLLBACK. Lab 6 …

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    • [PDF File]How to Avoid Table Mutating Errors in Oracle Server ...

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      How to Avoid Table Mutating Errors in Oracle Server Solution Guidelines For Lab2: Solution 1 - Using Compound Trigger Solution2 - Using Pakages with Compound Trigger Solution 3 - with PRAGMA AUTONOMOUS_TRANSACTION For a more practical use of compound triggers, we can take the example quoted in the Mutating Table Exceptions article and replace the two triggers and the …

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    • [PDF File]ORACLE ANALYTIC FUNCTIONS WINDOWING CLAUSE

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      • Board of Trustees – Utah Oracle Users Group (UTOUG) ... COUNT(*)-----14 1 row selected. SELECT SUM ( sal ) FROM scott.emp; SUM(SAL)-----29025 1 row selected. SELECT COUNT ( * ), SUM ( sal ) , MAX ( sal ) , MIN ( ename ) FROM scott.emp; COUNT(*) SUM(SAL) MAX(SAL) MIN(ENAME)----- ----- ----- -----14 29025 5000 ADAMS 1 row selected. Deptno Ename Sal 10 Clark 2450 10 King 5000 10 …

      oracle sql rowcount example

    • [PDF File]Oracle PLSQL Coding Guidelines - Topcoder

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      2.6.1 Row and Column Types When there is a direct correlation between a variable and a table column, the %TYPE or %ROWTYPE will be used. Example: DECLARE l_wins team.wins%TYPE; 2.6.2 Subtypes When there’s no direct correlation between a variable and table column variable restrictions will not be hard-coded. The developer will use ‘SUBTYPE’ to standardize data types. Example: CREATE OR ...

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