Sql case when then else
[DOCX File]SQL Server White Paper Template
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The back testing process described here makes use of Microsoft SQL Server 2008 R2, Microsoft Visual Studio, and data generated using the Monte Carlo method. For general information about these Microsoft products and the Monte Carlo method, see the links provided at the end of the paper.
[DOC File]ORACLE 9i - Harsh Divya
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SQL statements are not case sensitive, unless indicated. SQL statements can be entered on one or more lines. Keywords can’t be split across lines or abbreviated. Clauses are usually placed on separated lines for readability and case of editing. Indents should be used to make code more readable.
[DOC File]Built-In Logical Functions
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If no Boolean_expression evaluates to TRUE, SQL Server returns the else_result_expression if an ELSE clause is specified, or a NULL value if no ELSE clause is specified. ... CASE. WHEN (expression1 IS NOT NULL) THEN expression1... WHEN (expressionN IS NOT NULL) THEN expressionN. ELSE NULL. Title: Built-In Logical Functions Author: USER
[DOC File]SQL Tips
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Syntax Logic DECODE(F1, E2,E3, E4) If F1 = E2 THEN E3 ELSE E4 NVL(E1, E2) If E1 IS NULL THEN E2 ELSE E1 CASE WHEN E1 THEN E2 ELSE E3 END If E1 TRUE THEN E2 ELSE E3 Rollup. The use of a ROLLUP clause in the GROUP BY part of the SQL expression displays subtotals and grand totals depending on it’s use.
[DOCX File]Washington State Board for Community & Technical Colleges ...
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, case when s1.sex not in('m','f') then null else s1.sex end as sex
[DOCX File]Washington State University
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Case is like many if statements if this then do that, otherwise do the other thing. Please run the query to the left and perhaps change the values in the BETWEEN statements to alter the results. The between statements provide the condition being tested, and the value written to the column depends on how the value is being tested.
[DOC File]CONTROL STRUCTURES - SIUE
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ELSE. IF varl BETWEEN 7 AND 8 THEN. var2 := 2 * varl; ELSE. var2 := varl * varl; END IF; END IF; This leads us to two more rules about implementing if logic in PL/SQL: There can be one and only one ELSE with every IF statement. There is no semicolon (;) terminator after ELSE. IF-THEN-ELSIF. This format is an alternative to using the nested IF ...
[DOC File]USE master;
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GO. IF OBJECT_ID('dbo.sp_SDS', 'P') IS NOT NULL. DROP PROCEDURE dbo.sp_SDS; GO. CREATE PROCEDURE dbo.sp_SDS @TargetDatabase sysname = NULL, -- NULL: all dbs
[DOC File]CASE Expressions
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CASE bridges the gap between pure SQL and embedding SQL in 3GLs. In some cases, the only reason that we use a 3GL is to perform cursor loops that allow us to apply additional conditional processing to the data, row by row, based on the column values.
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