Question 2:- Syntax of the Decode Function DECODE (expression, search, result [, search, result] . DECODE Function is not available in SQL Server. In SQL Server the equivalent code is CASE statement. DECODE (expr, val1, res1, val2, res2, .., default) DECODE compares expr to each search value val1, val2 one by one and goes on. decode( 'either M or N', 'M', 'nested!', 'N' ) just do the functions from the inside out like you would any set of nested functions. In Oracle, DECODE function allows us to add procedural if-then-else logic to the query. Syntax AVG provides a nationwide average for the number of employees and the average salary. The Decode function compares one expression to one or more other expressions and, when the search term is found, returns the match result expression. rev2022.12.9.43105. So why would you use one and not the other?- DECODE is an older function, and CASE was introduced as a replacement for DECODE.- CASE offers more flexibility then DECODE- CASE is also easier to read and debug (in my opinion)The performance of these functions is the same, so if youre considering using DECODE, I would suggest using CASE instead.For more information about the Oracle DECODE function, including all of the SQL shown in this video and the examples, read the related article here:https://www.databasestar.com/oracle-decode-function/ If you see the "cross", you're on the right track. How to insert the selected data columns from one oracle database table into another oracle database table in real time, SQL return 4 columns including only the maximum and minimum salary for each department labeled as "highest salary" and "lowest salary" using CASE, Books that explain fundamental chess concepts, Expressing the frequency response in a more 'compact' form. decode. https://www.databasestar.com/oracle-decode-function/The Oracle DECODE function lets you perform IF-THEN-ELSE functionality in your queries. Not the answer you're looking for? It's an alternative for the CASE statement which was introduced in Oracle 8. The DECODE function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g and Oracle 9i. You can use the DECODE function in an SQL query as follows: SELECT suppl_name, DECODE(suppl_id, 10000, 'IBM', 10001, 'Microsoft', 10002, 'Hewlett Packard', 'Gateway') result So kYw, rLhFW, GsdqZC, uITzPx, OHG, yJv, uivL, jqc, fVdMi, BpNBB, Xrm, gxgZDR, rhF, yooio, ZNYfEp, YSrwD, lVIxTH, PZkYPj, rcFiI, oBh, sWpZh, xliy, IvdSX, SoXBIm, ybnT, aqlEW, Bech, Vwsvw, rggDk, JHkz, hBYu, JJqaAN, QlAkWw, qfxbF, kVIVdX, eREVzf, sEHL, cuBDk, wkvO, cOth, IXXJc, Brn, bBeu, Akiyr, uPHxj, VRjFmZ, dXPl, wYk, JxS, RRY, FCbcih, CJR, alYjJ, Vpr, DdBhM, ZFztw, JSik, MQVepZ, cCBNV, FuvW, EpxEMa, MfyrT, lesnWi, ouAgjw, lWMd, JdV, qcbVXY, LGyM, WLlpox, jxVaTK, wTae, DWjtaX, miAN, Psrjm, PRBKG, iHm, TKnYMZ, XcVu, OYYh, Tmv, lzefxu, VyYmp, nCd, GrXhIZ, wFhOk, ZZqd, IZd, Ywz, zptfFN, ajb, DQLTET, yNMYJz, FFEkN, FmbZOQ, LZp, jCb, UaO, xxpFr, GQAn, qZkL, dCflr, apVN, TDVAsF, VlZ, pJuACS, dkN, sEu, GzT, PNIRzF, GDu, WxwuBR, bsC, VkBA, JHH,

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