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Overview
| Comment: | Added documentation about the new CASE expression. (CVS 552) |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cc541b10302774b9004babbfb3a11b1f |
| User & Date: | drh 2002-05-06 11:47:33.000 |
Context
|
2002-05-08
| ||
| 11:54 | Fix for tickets #32 and #33: Generate the names of the result set early, before doing the flattening optimization or evaluating subqueries. Otherwise, the result set column names are generated incorrectly or after they are needed. (CVS 553) (check-in: 08f27cb368 user: drh tags: trunk) | |
|
2002-05-06
| ||
| 11:47 | Added documentation about the new CASE expression. (CVS 552) (check-in: cc541b1030 user: drh tags: trunk) | |
| 11:34 | Fix typos in the man-page (sqlite.1) and remove two unused files. Patches from Andreas Rottmann. (CVS 551) (check-in: 5772d31934 user: drh tags: trunk) | |
Changes
Changes to www/lang.tcl.
1 2 3 | # # Run this Tcl script to generate the sqlite.html file. # | | | 1 2 3 4 5 6 7 8 9 10 11 |
#
# Run this Tcl script to generate the sqlite.html file.
#
set rcsid {$Id: lang.tcl,v 1.33 2002/05/06 11:47:33 drh Exp $}
puts {<html>
<head>
<title>Query Language Understood By SQLite</title>
</head>
<body bgcolor=white>
<h1 align=center>
|
| ︙ | ︙ | |||
358 359 360 361 362 363 364 |
<p>You cannot COPY, INSERT or UPDATE a view. Views are read-only.</p>
}
Section DELETE delete
Syntax {sql-statement} {
| | | 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 |
<p>You cannot COPY, INSERT or UPDATE a view. Views are read-only.</p>
}
Section DELETE delete
Syntax {sql-statement} {
DELETE FROM <table-name> [WHERE <expr>]
}
puts {
<p>The DELETE command is used to remove records from a table.
The command consists of the "DELETE FROM" keywords followed by
the name of the table from which records are to be removed.
</p>
|
| ︙ | ︙ | |||
431 432 433 434 435 436 437 | For additional information about virtual machine instructions see the <a href="arch.html">architecture description</a> or the documentation on <a href="opcode.html">available opcodes</a> for the virtual machine.</p> } Section expression expr | | | | | | | | | | | | > | 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 |
For additional information about virtual machine instructions see
the <a href="arch.html">architecture description</a> or the documentation
on <a href="opcode.html">available opcodes</a> for the virtual machine.</p>
}
Section expression expr
Syntax {expr} {
<expr> <binary-op> <expr> |
<expr> <like-op> <expr> |
<unary-op> <expr> |
( <expr> ) |
<column-name> |
<table-name> . <column-name> |
<literal-value> |
<function-name> ( <expr-list> | STAR ) |
<expr> ISNULL |
<expr> NOTNULL |
<expr> [NOT] BETWEEN <expr> AND <expr> |
<expr> [NOT] IN ( <value-list> ) |
<expr> [NOT] IN ( <select-statement> ) |
( <select-statement> ) |
CASE [<expr>] ( WHEN <expr> THEN <expr> )+ [ELSE <expr>] END
} {like-op} {
LIKE | GLOB | NOT LIKE | NOT GLOB
}
puts {
<p>This section is different from the others. Most other sections of
this document talks about a particular SQL command. This section does
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961 962 963 964 965 966 967 |
information.</p>
}
Section SELECT select
Syntax {sql-statement} {
SELECT <result> [FROM <table-list>]
| | | | | 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 |
information.</p>
}
Section SELECT select
Syntax {sql-statement} {
SELECT <result> [FROM <table-list>]
[WHERE <expr>]
[GROUP BY <expr-list>]
[HAVING <expr>]
[<compound-op> <select>]*
[ORDER BY <sort-expr-list>]
[LIMIT <integer> [OFFSET <integer>]]
} {result} {
<result-column> [, <result-column>]*
} {result-column} {
STAR | <expr> [ [AS] <string> ]
} {table-list} {
<table> [, <table>]*
} {table} {
<table-name> [AS <alias>] |
( <select> ) [AS <alias>]
} {sort-expr-list} {
<expr> [<sort-order>] [, <expr> [<sort-order>]]*
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1048 1049 1050 1051 1052 1053 1054 |
}
Section UPDATE update
Syntax {sql-statement} {
UPDATE [ OR <conflict-algorithm> ] <table-name>
SET <assignment> [, <assignment>]
| | | | 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 |
}
Section UPDATE update
Syntax {sql-statement} {
UPDATE [ OR <conflict-algorithm> ] <table-name>
SET <assignment> [, <assignment>]
[WHERE <expr>]
} {assignment} {
<column-name> = <expr>
}
puts {
<p>The UPDATE statement is used to change the value of columns in
selected rows of a table. Each assignment in an UPDATE specifies
a column name to the left of the equals sign and an arbitrary expression
to the right. The expressions may use the values of other columns.
|
| ︙ | ︙ |