## NMR-STAR dictionary: database table: PHParam

Detailed description of the fields

### _PH_param.ID (PHParamID)

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NMR-STAR tag name | _PH_param.ID
Description | NMR-STAR name: _PH_param.ID Unique identifier for the observed NMR parameter value.
Database field name | PHParamID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | ,
Saveframe ID | yes: This tag contains the identifier for this saveframe in the entry.
Row Index | yes: This tag contains the index of this row in the loop, which is used when the data is loaded into a database which has a relational model in which ordering doesn't matter
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | pH param list ID
Examples | ?
Help text |

### _PH_param.PH_titr_result_ID (PHTitrResultID)

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NMR-STAR tag name | _PH_param.PH_titr_result_ID
Description | NMR-STAR name: _PH_param.PH_titr_result_ID Pointer to '_PH_titr_result.ID'
Database field name | PHTitrResultID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | PH_titr_result, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | pKa ID
Examples | ?
Help text |

### _PH_param.PH_val (PHVal)

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NMR-STAR tag name | _PH_param.PH_val
Description | NMR-STAR name: _PH_param.PH_val pH value at which the observed NMR parameter value was observed.
Database field name | PHVal
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | pH val
Examples | ?
Help text |

### _PH_param.PH_val_err (PHValErr)

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NMR-STAR tag name | _PH_param.PH_val_err
Description | NMR-STAR name: _PH_param.PH_val_err Error in the measured pH value.
Database field name | PHValErr
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | pH val err
Examples | ?
Help text |

### _PH_param.Observed_NMR_param_val (ObservedNMRParamVal)

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NMR-STAR tag name | _PH_param.Observed_NMR_param_val
Description | NMR-STAR name: _PH_param.Observed_NMR_param_val Value for the observed NMR parameter.
Database field name | ObservedNMRParamVal
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Observed NMR param val
Examples | ?
Help text |

### _PH_param.Observed_NMR_param_val_err (ObservedNMRParamValErr)

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NMR-STAR tag name | _PH_param.Observed_NMR_param_val_err
Description | NMR-STAR name: _PH_param.Observed_NMR_param_val_err Error in the reported NMR parameter value.
Database field name | ObservedNMRParamValErr
SQL Database type | FLOAT
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Observed NMR param val err
Examples | ?
Help text |

### _PH_param.Sf_ID (SfID)

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NMR-STAR tag name | _PH_param.Sf_ID
Description | NMR-STAR name: _PH_param.Sf_ID Pointer to '_PH_param_list.Sf_ID'
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | PH_param_list, Sf_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | yes This field's data is for internal use only and should be hidden in public versiond of the data.
Nulls allowed in database? | yes
Prompt | Sf ID
Examples | ?
Help text |

### _PH_param.Entry_ID (EntryID)

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NMR-STAR tag name | _PH_param.Entry_ID
Description | NMR-STAR name: _PH_param.Entry_ID Pointer to '_Entry.ID'
Database field name | EntryID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Entry, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Entry ID
Examples | ?
Help text |

### _PH_param.PH_param_list_ID (PHParamListID)

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NMR-STAR tag name | _PH_param.PH_param_list_ID
Description | NMR-STAR name: _PH_param.PH_param_list_ID Pointer to '_PH_param_list.ID'
Database field name | PHParamListID
SQL Database type | INTEGER
Part of primary Key | yes
Foreign Key on table, column | PH_param_list, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | PH param list ID
Examples | ?
Help text |