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  2. SQL-92 - Wikipedia

    en.wikipedia.org/wiki/SQL-92

    SQL-92 was the third revision of the SQL database query language. Unlike SQL-89, it was a major revision of the standard. Aside from a few minor incompatibilities, the SQL-89 standard is forward-compatible with SQL-92. The standard specification itself grew about five times compared to SQL-89.

  3. IBM AS/400 - Wikipedia

    en.wikipedia.org/wiki/IBM_AS/400

    Successive generations of iSeries and pSeries hardware converged until they were essentially the same hardware sold under different names and with different operating systems. [6] Some i5 servers were still using the AS/400-specific IBM Machine Type (MT/M 9406-520), and were able to run AIX in an LPar along i5/OS, while the p5 servers were able ...

  4. SQLSTATE - Wikipedia

    en.wikipedia.org/wiki/SQLSTATE

    In very early versions of the SQL standard the return code was called SQLCODE and used a different coding schema. The following table lists the standard-conforming values - based on SQL:2011 . [ 1 ] The table's last column shows the part of the standard that defines the row.

  5. IBM i - Wikipedia

    en.wikipedia.org/wiki/IBM_i

    The database evolved from the non-relational System/38 database, gaining support for the relational model and SQL. [1] The database originally had no name, instead it was described simply as "data base support". [54] It was given the name DB2/400 in 1994 to indicate comparable functionality to IBM's other commercial databases. [1]

  6. Join (SQL) - Wikipedia

    en.wikipedia.org/wiki/Join_(SQL)

    PostgreSQL, MySQL and Oracle support natural joins; Microsoft T-SQL and IBM DB2 do not. The columns used in the join are implicit so the join code does not show which columns are expected, and a change in column names may change the results. In the SQL:2011 standard, natural joins are part of the optional F401, "Extended joined table", package.

  7. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

  8. Job Control Language - Wikipedia

    en.wikipedia.org/wiki/Job_Control_Language

    Job Control Language (JCL) is a scripting language used on IBM mainframe operating systems to instruct the system on how to run a batch job or start a subsystem. [1] The purpose of JCL is to say which programs to run, using which files or devices [2] for input or output, and at times to also indicate under what conditions to skip a step.

  9. IBM 5250 - Wikipedia

    en.wikipedia.org/wiki/IBM_5250

    IBM 5251, connected to an AS/400 system. IBM 5250 is a family of block-oriented terminals originally introduced with the IBM System/34 midrange computer systems in 1977. [1] It also connects to the later System/36, System/38, and IBM AS/400 systems, and to IBM Power Systems systems running IBM i, as well as the Series/1 minicomputer.