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Overview
| Comment: | Fix a duplicate fragment name in lang_expr.html |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
8ffd68dac7be595db3d1322de8b7ff48 |
| User & Date: | drh 2018-08-25 14:56:04 |
Context
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2018-08-27
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| 17:15 | First cut at documentation for the Geopoly module. check-in: a007133016 user: drh tags: trunk | |
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2018-08-25
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| 14:56 | Fix a duplicate fragment name in lang_expr.html check-in: 8ffd68dac7 user: drh tags: trunk | |
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2018-08-15
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| 13:21 | Pre-expand key railroad diagrams in the windowfunctions.html page. check-in: 61483bc834 user: drh tags: trunk | |
Changes
Changes to pages/lang.in.
2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 |
unique integer key (the [rowid]) associated with every
row of every table and so are not available on [WITHOUT ROWID] tables.
^The special identifiers only refer to the row key if the [CREATE TABLE]
statement does not define a real column with the same name.
^The rowid can be used anywhere a regular
column can be used.</p>
<tcl>hd_fragment in_op {EXISTS operator} {NOT EXISTS operator}</tcl>
<h3>The EXISTS operator</h3>
<p>^The EXISTS operator always evaluates to one of the integer values 0
and 1. ^If executing the SELECT statement specified as the right-hand
operand of the EXISTS operator would return one or more rows, then the
EXISTS operator evaluates to 1. ^If executing the SELECT would return
no rows at all, then the EXISTS operator evaluates to 0.
|
| |
2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 |
unique integer key (the [rowid]) associated with every
row of every table and so are not available on [WITHOUT ROWID] tables.
^The special identifiers only refer to the row key if the [CREATE TABLE]
statement does not define a real column with the same name.
^The rowid can be used anywhere a regular
column can be used.</p>
<tcl>hd_fragment exists_op {EXISTS operator} {NOT EXISTS operator}</tcl>
<h3>The EXISTS operator</h3>
<p>^The EXISTS operator always evaluates to one of the integer values 0
and 1. ^If executing the SELECT statement specified as the right-hand
operand of the EXISTS operator would return one or more rows, then the
EXISTS operator evaluates to 1. ^If executing the SELECT would return
no rows at all, then the EXISTS operator evaluates to 0.
|